1
|
Halcrow MA, Vasili HB, Pask CM, Kulak AN, Cespedes O. Activating a high-spin iron(II) complex to thermal spin-crossover with an inert non-isomorphous molecular dopant. Dalton Trans 2024; 53:6983-6992. [PMID: 38563124 DOI: 10.1039/d4dt00443d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
[Fe(bpp)2][ClO4]2 (bpp = 2,6-bis{pyrazol-1-yl}pyridine; monoclinic, C2/c) is high-spin between 5-300 K, and crystallises with a highly distorted molecular geometry that lies along the octahedral-trigonal prismatic distortion pathway. In contrast, [Ni(bpp)2][ClO4]2 (monoclinic, P21) adopts a more regular, near-octahedral coordination geometry. Gas phase DFT minimisations (ω-B97X-D/6-311G**) of [M(bpp)2]2+ complexes show the energy penalty associated with that coordination geometry distortion runs as M2+ = Fe2+ (HS) ≈ Mn2+ (HS) < Zn2+ ≈ Co2+ (HS) ≲ Cu2+ ≪ Ni2+ ≪ Ru2+ (LS; HS = high-spin, LS = low-spin). Slowly crystallised solid solutions [FexNi1-x(bpp)2][ClO4]2 with x = 0.53 (1a) and 0.74 (2a) adopt the P21 lattice, while x = 0.87 (3a) and 0.94 (4a) are mixed-phase materials with the high-spin C2/c phase as the major component. These materials exhibit thermal spin-transitions at T½ = 250 ± 1 K which occurs gradually in 1a, and abruptly and with narrow thermal hysteresis in 2a-4a. The transition proceeds to 100% completeness in 1a and 2a; that is, the 26% Ni doping in 2a is enough to convert high-spin [Fe(bpp)2][ClO4]2 into a cooperative, fully SCO-active material. These results were confirmed crystallographically for 1a and 2a, which revealed similarities and differences between these materials and the previously published [FexNi1-x(bpp)2][BF4]2 series. Rapidly precipitated powders with the same compositions (1b-4b) mostly resemble 1a-4a, except that 2b is a mixed-phase material; 2b-4b also contain a fraction of amorphous solid in addition to the two crystal phases. The largest iron fraction that can be accommodated by the P21 phase in this system is 0.7 ± 0.1.
Collapse
Affiliation(s)
- Malcolm A Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.
| | - Hari Babu Vasili
- School of Physics and Astronomy, University of Leeds, W. H. Bragg Building, Leeds, LS2 9JT, UK
| | - Christopher M Pask
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.
| | - Alexander N Kulak
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.
| | - Oscar Cespedes
- School of Physics and Astronomy, University of Leeds, W. H. Bragg Building, Leeds, LS2 9JT, UK
| |
Collapse
|
2
|
Kulmaczewski R, Halcrow MA. Iron(II) complexes of 2,6-bis(imidazo[1,2- a]pyridin-2-yl)pyridine and related ligands with annelated distal heterocyclic donors. Dalton Trans 2023; 52:14928-14940. [PMID: 37799008 DOI: 10.1039/d3dt02747c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
Following a published synthesis of 2,6-bis(imidazo[1,2-a]pyridin-2-yl)pyridine (L1), treatment of α,α'-dibromo-2,6-diacetylpyridine with 2 equiv. 2-aminopyrimidine or 2-aminoquinoline in refluxing acetonitrile respectively gives 2,6-bis(imidazo[1,2-a]pyrimidin-2-yl)pyridine (L2) and 2,6-bis(imidazo[1,2-a]quinolin-2-yl)pyridine (L3). Solvated crystals of [Fe(L1)2][BF4]2 (1[BF4]2) and [Fe(L2)2][BF4]2 (2[BF4]2) are mostly high-spin, although one solvate of 1[BF4]2 undergoes thermal spin-crossover on cooling. The iron coordination geometry is consistently distorted in crystals of 2[BF4]2 which may reflect the influence of intramolecular, inter-ligand N⋯π interactions on the molecular conformation. Only 1 : 1 Fe : L3 complexes were observed in solution, or isolated in the solid state; a crystal structure of [FeBr(py)2L3]Br·0.5H2O (py = pyridine) is presented. A solvate crystal structure of high-spin [Fe(L4)2][BF4]2 (L4 = 2,6-di{quinolin-2-yl}pyridine; 4[BF4]2) is also described, which exhibits a highly distorted six-coordinate geometry with a helical ligand conformation. The iron(II) complexes are high-spin in solution at room temperature, but 1[BF4]2 and 2[BF4]2 undergo thermal spin-crossover equilibria on cooling. All the compounds exhibit a ligand-based emission in solution at room temperature. Gas phase DFT calculations mostly reproduce the spin state properties of the complexes, but show small anomalies attributed to intramolecular, inter-ligand dispersion interactions in the sterically crowded molecules.
Collapse
Affiliation(s)
- Rafal Kulmaczewski
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, UK LS2 9JT.
| | - Malcolm A Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, UK LS2 9JT.
| |
Collapse
|
3
|
Marcinkowski D, Kubicki M, Patroniak V, Muzioł T, Chorazy S, Shi L, Zychowicz M, Majcher-Fitas AM, Podgajny R, Gorczyński A. Trityl-Based Lanthanide-Supramolecular Assemblies Exhibiting Slow Magnetic Relaxation. Chemistry 2023; 29:e202300695. [PMID: 37408381 DOI: 10.1002/chem.202300695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 06/26/2023] [Accepted: 07/03/2023] [Indexed: 07/07/2023]
Abstract
The triphenylmethane (trityl) group has been recognized as a supramolecular synthon in crystal engineering, molecular machine rotors and stereochemical chirality inductors in materials science. Herein we demonstrate for the first time how it can be utilized in the domain of molecular magnetic materials through shaping of single molecule magnet (SMM) properties within the lanthanide complexes in tandem with other non-covalent interactions. Trityl-appended mono- (HL1 ) and bis-compartmental (HL2 ) hydrazone ligands were synthesized and complexated with Dy(III) and Er(III) triflate and nitrate salts to generate four monometallic (1-4) and two bimetallic (5, 6) complexes. The static and dynamic magnetic properties of 1-6 were investigated, revealing that only ligand HL1 induces assemblies (1-4) capable of showing SMM behaviour, with Dy(III) congeners (1, 2) able to exhibit the phenomenon also under zero field conditions. Theoretical ab initio studies helped in determination of Dy(III) energetic levels, magnetic anisotropic axes and corroborated magnetic relaxation mechanisms to be a combination of Raman and quantum tunnelling in zero dc field, the latter being cancelled in the optimum non-zero dc field. Our work represents the first study of magneto-structural correlations within the trityl Ln-SMMs, leading to generation of slowly relaxing zero-field dysprosium complexes within the hydrogen-bonded assemblies.
Collapse
Affiliation(s)
- Dawid Marcinkowski
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
| | - Maciej Kubicki
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
| | - Violetta Patroniak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
| | - Tadeusz Muzioł
- Nicolaus Copernicus University in Torun, Faculty of Chemistry, Jurija Gagarina 11, 87-100, Toruń, Poland
| | - Szymon Chorazy
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Le Shi
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Mikołaj Zychowicz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Anna M Majcher-Fitas
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Robert Podgajny
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Adam Gorczyński
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
| |
Collapse
|
4
|
Diaw-Ndiaye F, Sanz Miguel PJ, Rodríguez R, Macías R. The Synthesis, Characterization, and Fluxional Behavior of a Hydridorhodatetraborane. Molecules 2023; 28:6462. [PMID: 37764238 PMCID: PMC10535517 DOI: 10.3390/molecules28186462] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023] Open
Abstract
The octahydridotriborate anion plays a crucial role in the field of polyhedral boron chemistry, facilitating the synthesis of higher boranes and the preparation of diverse transition metal complexes. Among the stable forms of this anion, CsB3H8 (or (n-C4H9)4N)[B3H8] have been identified. These salts serve as valuable precursors for the synthesis of metallaboranes, wherein the triborate anion acts as a ligand coordinating to the metal center. In this study, we have successfully synthesized a novel rhodatetraborane dihydride, [Rh(η2-B3H8)(H)2(PPh3)2] (1), which represents a Rh(III) complex featuring a bidentate chelate ligand fasormed by B3H8-. Extensive characterization of this rhodatetraborane complex has been performed using NMR spectroscopy in solution and X-ray diffraction analysis in the solid state. Notably, the complex exhibits intriguing fluxional behavior, which has been investigated using NMR techniques. Moreover, we have explored the reactivity of complex 1 towards pyridine (py) and dimethylphenylphosphine (PMe2Ph). Our findings highlight the labile nature of this four-vertex rhodatetraborane as it undergoes disassembly upon attack from the corresponding Lewis base, resulting in the formation of borane adducts, LBH3, where L = py, PMe2Ph. Furthermore, in these reactions, we report the characterization of new cationic hydride complexes, such as [Rh(H)2(PPh3)2 (py)]+ (2) and [Rh(H)2(PMe2Ph)4]+. Notably, the latter complex has been characterized as the octahydridotriborate salt [Rh(H)2(PMe2Ph)4][B3H8] (3), which extends the scope of rhodatetraborane derivatives.
Collapse
Affiliation(s)
| | | | | | - Ramón Macías
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| |
Collapse
|
5
|
Slyusarchuk VD, O’Brien BJ, Hawes CS. Supramolecular structural influences from remote functionality in coordination complexes of 4-picolylamine ligands. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2130059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- V. D. Slyusarchuk
- School of Chemical and Physical Sciences, Keele University, Keele, UK
| | - B. J. O’Brien
- School of Chemical and Physical Sciences, Keele University, Keele, UK
| | - C. S. Hawes
- School of Chemical and Physical Sciences, Keele University, Keele, UK
| |
Collapse
|
6
|
Tokoro Y, Nakayama G, Yamamoto S, Koizumi T. Tuning Solid‐State Emission Behavior of Janus‐Type Anthracenes by Addition of Shielding Bridges. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yuichiro Tokoro
- Department of Applied Chemistry School of Applied Science National Defense Academy of Japan 1-10-20 Hashirimizu Yokosuka Kanagawa 240-8501 Japan
| | - Genta Nakayama
- Department of Applied Chemistry School of Applied Science National Defense Academy of Japan 1-10-20 Hashirimizu Yokosuka Kanagawa 240-8501 Japan
| | - Shin‐ichi Yamamoto
- Department of Applied Chemistry School of Applied Science National Defense Academy of Japan 1-10-20 Hashirimizu Yokosuka Kanagawa 240-8501 Japan
| | - Toshio Koizumi
- Department of Applied Chemistry School of Applied Science National Defense Academy of Japan 1-10-20 Hashirimizu Yokosuka Kanagawa 240-8501 Japan
| |
Collapse
|
7
|
Gallagher JF, Hehir N, Mocilac P, Violin C, O’Connor BF, Aubert E, Espinosa E, Guillot B, Jelsch C. Probing the Electronic Properties and Interaction Landscapes in a Series of N-(Chlorophenyl)pyridinecarboxamides. CRYSTAL GROWTH & DESIGN 2022; 22:3343-3358. [PMID: 35547941 PMCID: PMC9074230 DOI: 10.1021/acs.cgd.2c00153] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/29/2022] [Indexed: 06/15/2023]
Abstract
A 3 × 3 isomer grid of nine N-(chlorophenyl)pyridinecarboxamides (NxxCl) is reported with physicochemical studies and single crystal structures (Nx = pyridinoyl moiety; xCl = aminochlorobenzene ring; x = para-/meta-/ortho-), as synthesized by the reaction of the substituted p-/m-/o-pyridinecarbonyl chlorides (Nx) with p-/m-/o-aminochlorobenzenes (xCl). Several of the nine NxxCl crystal structures display structural similarities with their halogenated NxxX and methylated NxxM relatives (x = p-/m-/o-substitutions; X = F, Br; M = methyl). Indeed, five of the nine NxxCl crystal structures are isomorphous with their NxxBr analogues as the NpmCl/Br, NpoCl/Br, NmoCl/NmoBr, NopCl/Br, and NooCl/Br pairs. In the NxxCl series, the favored hydrogen bonding mode is aggregation by N-H···Npyridine interactions, though amide···amide intermolecular interactions are noted in NpoCl and NmoCl. For the NoxCl triad, intramolecular N-H···Npyridine interactions influence molecular planarity, whereas NppCl·H2O (as a monohydrate) exhibits O-H···O, N-H···O1W, and O1W-H···N interactions as the primary hydrogen bonding. Analysis of chlorine-containing compounds on the CSD is noted for comparisons. The interaction environments are probed using Hirshfeld surface analysis and contact enrichment studies. The melting temperatures (T m) depend on both the lattice energy and molecular symmetry (Carnelley's rule), and the melting points can be well predicted from a linear regression of the two variables. The relationships of the T m values with the total energy, the electrostatic component, and the strongest hydrogen bond components have been analyzed.
Collapse
Affiliation(s)
- John F. Gallagher
- School
of Chemical Sciences, Dublin City University, Dublin D09 DXA0, Ireland
| | - Niall Hehir
- School
of Chemical Sciences, Dublin City University, Dublin D09 DXA0, Ireland
| | - Pavle Mocilac
- School
of Chemical Sciences, Dublin City University, Dublin D09 DXA0, Ireland
| | - Chloé Violin
- School
of Chemical Sciences, Dublin City University, Dublin D09 DXA0, Ireland
| | | | - Emmanuel Aubert
- CRM, CNRS UMR 7036, Faculté
des Sciences et Technologies, Université
de Lorraine, BP 70239, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
| | - Enrique Espinosa
- CRM, CNRS UMR 7036, Faculté
des Sciences et Technologies, Université
de Lorraine, BP 70239, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
| | - Benoît Guillot
- CRM, CNRS UMR 7036, Faculté
des Sciences et Technologies, Université
de Lorraine, BP 70239, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
| | - Christian Jelsch
- CRM, CNRS UMR 7036, Faculté
des Sciences et Technologies, Université
de Lorraine, BP 70239, Boulevard des Aiguillettes, 54506 Vandoeuvre-lès-Nancy, France
| |
Collapse
|
8
|
Nishiuchi T, Sotome H, Shimizu K, Miyasaka H, Kubo T. 1,2,3-Tri(9-anthryl)benzene: Photophysical Properties and Solid State Intermolecular Interactions of Radially Arranged, Congested Aromatic π-Planes. Chemistry 2021; 28:e202104245. [PMID: 34910331 DOI: 10.1002/chem.202104245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Indexed: 11/12/2022]
Abstract
We report the Negishi coupling based synthesis of 1,2,3-tri(9-anthryl)benzene derivatives, containing three radially arranged anthracenes in a π-cluster. In the crystalline state of the unsubstituted derivative, intermolecular π-π and CH-π interactions between the anthracene units drive the formation of a two-dimensional packing structure. Owing to though-space π-conjugation between anthracene units, the substances have unique electronic properties. The excited state dynamic behavior occurring between the three radially arranged anthracene moieties, such as exciton localization/delocalization, was elucidated by means of transient absorption measurements and quantum chemical calculations. Interestingly, even though the three anthracenes are closely oriented with a ca. 3.0 Å distances between their C-9 positions, exciton localization on two anthracene units is energetically favorable because of the flexible nature of the radially arranged aromatic rings.
Collapse
Affiliation(s)
- Tomohiko Nishiuchi
- Osaka University, Department of Chemistry, 1-1 Machikaneyama, Toyonaka, 560-0043, Osaka, JAPAN
| | - Hikaru Sotome
- Osaka University: Osaka Daigaku, Graduate School of Engineering Science, 1-3 Machikaneyama, 560-8531, Toyonaka, JAPAN
| | - Kazuto Shimizu
- Osaka University School of Science Graduate School of Science: Osaka Daigaku Daigakuin Rigaku Kenkyuka Rigakubu, Chemistry, 1-1 Machikaneyama, 560-0043, Toyonaka, JAPAN
| | - Hiroshi Miyasaka
- Osaka University - Toyonaka Campus: Osaka Daigaku - Toyonaka Campus, Graduate School of Engineering Science, 560-8531, Toyonaka, JAPAN
| | - Takashi Kubo
- Osaka University School of Science Graduate School of Science: Osaka Daigaku Daigakuin Rigaku Kenkyuka Rigakubu, Chemistry, 1-1 Machikaneyama, 560-0043, Toyonaka, JAPAN
| |
Collapse
|
9
|
Okayasu M, Sunakawa T, Ikeda M, Namikawa T, Hagura R, Kikkawa S, Hikawa H, Azumaya I. Size and Shape Manipulation of Channel Structures Assembled
Via
Saddle stacking of Tetrapodal Adamantanes Containing Aryl Butadiynyl Moieties. ChemistrySelect 2021. [DOI: 10.1002/slct.202103077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Misaki Okayasu
- Faculty of Pharmaceutical Sciences Toho University 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Toshiki Sunakawa
- Faculty of Pharmaceutical Sciences Toho University 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Mitsuru Ikeda
- Faculty of Pharmaceutical Sciences Toho University 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Takaya Namikawa
- Faculty of Pharmaceutical Sciences Toho University 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Riho Hagura
- Faculty of Pharmaceutical Sciences Toho University 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Shoko Kikkawa
- Faculty of Pharmaceutical Sciences Toho University 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Hidemasa Hikawa
- Faculty of Pharmaceutical Sciences Toho University 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| | - Isao Azumaya
- Faculty of Pharmaceutical Sciences Toho University 2-2-1 Miyama Funabashi Chiba 274-8510 Japan
| |
Collapse
|
10
|
Möbs J, Luy JN, Shlyaykher A, Tonner R, Heine J. The influence of copper on the optical band gap of heterometallic iodido antimonates and bismuthates. Dalton Trans 2021; 50:15855-15869. [PMID: 34709270 DOI: 10.1039/d1dt02828f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Halogenido metalates of heavy main group elements are versatile semiconductor materials with broad applications. Especially the iodido metalates generally show small optical band gaps, making them suitable for photovoltaics. However, the most promising results have been generated using toxic lead-based materials, raising environmental concerns, while the related and far less toxic bismuth compounds show band gaps too large for direct use in photovoltaics. The introduction of heterometals such as copper can significantly lower the band gap of iodido bismuthates and antimonates, but no clear trend could yet be established in this regard. In this work a short overview over all known copper iodido bismuthates and antimonates is given and this small family of compounds is expanded with nine charged as well as neutral complexes [EkMlIm(P(R)3)n]q- (E = Sb, Bi; M = Cu, Ag; R = Ph, o-tol). The compounds' crystal structures, stability and optical properties are investigated and compared to the findings of quantum chemical investigations. The main excitation is shown to be a copper to antimony or copper to bismuth charge transfer while the relative energetic position of the organic ligand orbitals influences the magnitude of the band gap. This reveals that the nature of the ligands and the coordination environment at the copper atom is crucial for designing new copper iodido antimonates and bismuthates with specific band gaps.
Collapse
Affiliation(s)
- Jakob Möbs
- Department of Chemistry and Material Sciences Center, Philipps-Universität Marburg, Hans-Meerwein-Straße, 35043 Marburg, Germany.
| | - Jan-Niclas Luy
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstraße 2, 04103 Leipzig, Germany
| | - Alena Shlyaykher
- Department of Chemistry and Material Sciences Center, Philipps-Universität Marburg, Hans-Meerwein-Straße, 35043 Marburg, Germany.
| | - Ralf Tonner
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstraße 2, 04103 Leipzig, Germany
| | - Johanna Heine
- Department of Chemistry and Material Sciences Center, Philipps-Universität Marburg, Hans-Meerwein-Straße, 35043 Marburg, Germany.
| |
Collapse
|
11
|
Baggi G, Wilson BH, Dhara A, O'Keefe CA, Schurko RW, Loeb SJ. Dynamics of a [2]rotaxane wheel in a crystalline molecular solid. Chem Commun (Camb) 2021; 57:8210-8213. [PMID: 34308949 DOI: 10.1039/d1cc03009d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An H-shaped [2]rotaxane comprising a bis(benzimidazole) axle and a 24-membered crown ether wheel appended with four trityl groups forms a highly crystalline material with enough free volume to allow large amplitude motion of the interlocked macrocycle. Variable-temperature (VT) 2H solid-state nuclear magnetic resonance (SSNMR) was used to characterize the dynamics of the [2]rotaxane wheel in this material.
Collapse
Affiliation(s)
- Giorgio Baggi
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, ON N9B 3P4, Canada.
| | | | | | | | | | | |
Collapse
|
12
|
Peloquin AJ, McMillen CD, Iacono ST, Pennington WT. Halogen and Chalcogen Bonding Between the Triphenylphosphine Chalcogenides (Ph 3 P=E; E=O, S, Se) and Iodofluorobenzenes. Chempluschem 2021; 86:549-557. [PMID: 33797869 DOI: 10.1002/cplu.202100042] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/17/2021] [Indexed: 12/11/2022]
Abstract
A series of cocrystals of Ph3 P=E (E=O, S, Se) with organoiodines were studied to understand the roles of noncovalent interactions including chalcogen (ChB) and halogen (XB) bonding in their formation. The structure of the cocrystal of Ph3 P=S and 1,2-diiodotetrafluorobezene was determined, which demonstrates a similar chalcogen⋅⋅⋅iodine XB pattern to the previously reported isomorphic Ph3 P=Se structure. The cocrystalline structures resulting from the combination of 1,3-diiodotetrafluorobenzene (1,3-F4 DIB), as well as iodopentafluorobenzene, with all three triphenylphosphine chalcogenides, were also determined. The (Ph3 P=Se) ⋅ (1,3-F4 DIB) cocrystal presents a rare example of a selenium⋅⋅⋅organoiodine ChB. The observed ChB and XB interactions have normalized distance parameters (RXB ) ranging from 0.80 to 0.98. The strength of the XB and ChB interactions were analyzed using natural bond orbital (NBO) theory, with calculated energies falling between 3.14 kcal/mol and 12.81 kcal/mol.
Collapse
Affiliation(s)
- Andrew J Peloquin
- Department of Chemistry, Clemson University, 219 Hunter Laboratories, Clemson, SC 29634-0973, USA
| | - Colin D McMillen
- Department of Chemistry, Clemson University, 219 Hunter Laboratories, Clemson, SC 29634-0973, USA
| | - Scott T Iacono
- Department of Chemistry & Chemistry Research Center, Laboratories for Advanced Materials, US Air Force Academy, 2355 Fairchild Dr, Suite 2N255, Colorado Springs, CO 80840, USA
| | - William T Pennington
- Department of Chemistry, Clemson University, 219 Hunter Laboratories, Clemson, SC 29634-0973, USA
| |
Collapse
|
13
|
Miao LP, Qi Q, Zhang W. Solvent-Induced Structural Transformation and Luminescence Response in a Dumbbell-Shaped Crystalline Molecular Rotor. Inorg Chem 2021; 60:3149-3155. [PMID: 33570918 DOI: 10.1021/acs.inorgchem.0c03504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Crystalline molecular rotors constitute a new class of stimuli-responsive molecular materials owing to inherent molecular dynamics. However, beyond the molecular level, the role of molecular packings on the bulk structures and related properties has yet to be fully understood. Herein, we report a crystalline molecular rotor showing solvent-induced structural transformation and luminescence response. The molecular rotor has a dumbbell shape with two plates as the stators and one axial bridging ligand as the rotator. The crystals adopt solvated and desolvated forms with strikingly different packing structures. The solvated forms can easily transform into the desolvated form. During the structure transformation, the butterfly-like conformation of the stator undergoes a drastic dihedral angle change of about 30°, resulting in a luminescent change of about 10 nm. These findings afford a new aspect for functional molecular rotor materials.
Collapse
Affiliation(s)
- Le-Ping Miao
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics and School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Qi Qi
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics and School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Wen Zhang
- Jiangsu Key Laboratory for Science and Applications of Molecular Ferroelectrics and School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| |
Collapse
|
14
|
Abstract
Analysis of the weak interactions within the crystal structures of 33 complexes of various 4′-aromatic derivatives of 2,2′:6′,2″-terpyridine (tpy) shows that interactions that exceed dispersion are dominated, as expected, by cation⋯anion contacts but are associated with both ligand–ligand and ligand–solvent contacts, sometimes multicentred, in generally complicated arrays, probably largely determined by dispersion interactions between stacked aromatic units. With V(V) as the coordinating cation, there is evidence that the polarisation of the ligand results in an interaction exceeding dispersion at a carbon bound to nitrogen with oxygen or fluorine, an interaction unseen in the structures of M(II) (M = Fe, Co, Ni, Cu, Zn, Ru and Cd) complexes, except when 1,2,3-trimethoxyphenyl substituents are present in the 4′-tpy.
Collapse
|
15
|
Okayasu M, Kikkawa S, Hikawa H, Azumaya I. Relationship between crystal shape and unit cell shape: crystal shape modification via co-crystallization toward SXRD-suitable crystals. CrystEngComm 2021. [DOI: 10.1039/d1ce00897h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The relationships between the shape and cell parameters were investigated using 131 crystals of secondary aromatic sulfonamides. And, 11 sulfonamides isolated as oils, amorphous, or needle crystals were co-crystallized to obtain block-like crystals.
Collapse
Affiliation(s)
- Misaki Okayasu
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| | - Shoko Kikkawa
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| | - Hidemasa Hikawa
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| | - Isao Azumaya
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| |
Collapse
|
16
|
Pask CM, Greatorex S, Kulmaczewski R, Baldansuren A, McInnes EJL, Bamiduro F, Yamada M, Yoshinari N, Konno T, Halcrow MA. Elucidating the Structural Chemistry of a Hysteretic Iron(II) Spin-Crossover Compound From its Copper(II) and Zinc(II) Congeners. Chemistry 2020; 26:4833-4841. [PMID: 32017244 DOI: 10.1002/chem.202000101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Indexed: 11/12/2022]
Abstract
Annealing [FeL2 ][BF4 ]2 ⋅2 H2 O (L=2,6-bis-[5-methyl-1H-pyrazol-3-yl]pyridine) affords an anhydrous material, which undergoes a spin transition at T1/2 =205 K with a 65 K thermal hysteresis loop. This occurs through a sequence of phase changes, which were monitored by powder diffraction in an earlier study. [CuL2 ][BF4 ]2 ⋅2 H2 O and [ZnL2 ][BF4 ]2 ⋅2 H2 O are not perfectly isostructural but, unlike the iron compound, they undergo single-crystal-to-single-crystal dehydration upon annealing. All the annealed compounds initially adopt the same tetragonal phase but undergo a phase change near room temperature upon re-cooling. The low-temperature phase of [CuL2 ][BF4 ]2 involves ordering of its Jahn-Teller distortion, to a monoclinic lattice with three unique cation sites. The zinc compound adopts a different, triclinic low-temperature phase with significant twisting of its coordination sphere, which unexpectedly becomes more pronounced as the crystal is cooled. Synchrotron powder diffraction data confirm that the structural changes in the anhydrous zinc complex are reproduced in the high-spin iron compound, before the onset of spin-crossover. This will contribute to the wide hysteresis in the spin transition of the iron complex. EPR spectra of copper-doped [Fe0.97 Cu0.03 L2 ][BF4 ]2 imply its low-spin phase contains two distinct cation environments in a 2:1 ratio.
Collapse
Affiliation(s)
- Christopher M Pask
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Sam Greatorex
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Rafal Kulmaczewski
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Amgalanbaatar Baldansuren
- School of Chemistry and Photon Science Institute, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.,current address: Chemistry and Chemical Biology, 120 Cogswell, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY, 12180, USA
| | - Eric J L McInnes
- School of Chemistry and Photon Science Institute, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Faith Bamiduro
- School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Mihoko Yamada
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan.,current address: Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma, Nara, 630-0192, Japan
| | - Nobuto Yoshinari
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Takumi Konno
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | - Malcolm A Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.,Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| |
Collapse
|
17
|
Chan EJ, Cotton SA, Harrowfield JM, Skelton BW, Sobolev AN, White AH. Polypyridines, Picrates, Lanthanides: A Plethora of Stacks? Aust J Chem 2020. [DOI: 10.1071/ch19367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Reactions of the lanthanide(iii) picrates (picrate=2,4,6-trinitrophenoxide=pic) with 1,10-phenanthroline (phen) and 2,2′:6′,2′′-terpyridine (terpy) in a 1:2 molar ratio have provided crystals suitable for X-ray structure determinations in instances predominantly involving the lighter lanthanides. In all, the aza-aromatic ligands chelate the lanthanide ion, none being found as ‘free’ ligands within the lattice. The complexes of 1,10-phenanthroline have been characterised in two forms, one unsolvated (Ln=La, Sm, Eu; monoclinic, C2/c, Z 8), one an acetonitrile monosolvate (Ln=Gd; monoclinic, P21/a, Z 4), the latter being the only previously known form (with Ln=La). In both forms, the LnIII is nine-coordinate, in an approximately tricapped trigonal-prismatic environment, with two picrate ligands chelating through phenoxide and 2-nitro group oxygen atoms, the third being bound through phenoxide-O only. The 2,2′:6′,2′′-terpyridine complexes, all acetonitrile monosolvates defined for Ln=La, Gd, Er, and Y (monoclinic, C2/c, Z 4), are ionic, one picrate having been displaced from the primary coordination sphere. For Ln=La, the two bound picrates are again chelating, making the LaIII 10-coordinate in a distorted bicapped square-antiprismatic environment but in the other species they are bound through phenoxide-O only, making the LnIII ions eight-coordinate in a distorted square-antiprismatic environment. Stacked arrays of the ligands can be found in both series of complexes, with intramolecular picrate–picrate and picrate–aza-aromatic stacks being prominent features.
Collapse
|
18
|
Capel Berdiell I, Farmiloe SE, Kulmaczewski R, Halcrow MA. Molecular squares, coordination polymers and mononuclear complexes supported by 2,4-dipyrazolyl-6H-1,3,5-triazine and 4,6-dipyrazolylpyrimidine ligands. Dalton Trans 2019; 48:17310-17320. [PMID: 31720621 DOI: 10.1039/c9dt04003j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The Fe[BF4]2 complex of 2,4-di(pyrazol-1-yl)-6H-1,3,5-triazine (L1) is a high-spin molecular square, [{Fe(L1)}4(μ-L1)4][BF4]8, whose crystals also contain the unusual HPzBF3 (HPz = pyrazole) adduct. Three other 2,4-di(pyrazol-1-yl)-6H-1,3,5-triazine derivatives with different pyrazole substituents (L2-L4) are unstable in the presence of first row transition ions, but form mononuclear, polymeric or molecular square complexes with silver(i). Most of these compounds involve bis-bidentate di(pyrazolyl)triazine coordination, which is unusual for that class of ligand, and the molecular squares encapsulate one or two BF4-, ClO4- or SbF6- ions through combinations of anionπ, AgX and/or C-HX (X = O or F) interactions. Treatment of Fe[NCS]2 or Fe[NCSe]2 with 4,6-di(pyrazol-1-yl)-2H-pyrimidine (L5) or its 2-methyl and 2-amino derivatives (L6 and L7) yields mononuclear [Fe(NCE)2L2] and/or the 1D coordination polymers catena-[Fe(NCE)2(μ-L)] (E = S or Se, L = L5-L7). Alcohol solvates of isomorphous [Fe(NCS)2L2] and [Fe(NCSe)2L2] compounds show different patterns of intermolecular hydrogen bonding, reflecting the acceptor properties of the anion ligands. These iron compounds are all high-spin, although annealing solvated crystals of [Fe(NCSe)2(L5)2] affords a new phase exhibiting an abrupt, low-temperature spin transition. Catena-[Fe(H2O)2(μ-L5)][ClO4]2 is a coordination polymer of alternating cis and trans iron centres.
Collapse
Affiliation(s)
- Izar Capel Berdiell
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.
| | | | | | | |
Collapse
|
19
|
Heskia A, Maris T, Aguiar PM, Wuest JD. Building Large Structures with Curved Aromatic Surfaces by Complexing Metals with Phosphangulene. J Am Chem Soc 2019; 141:18740-18753. [DOI: 10.1021/jacs.9b08179] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alice Heskia
- Département de Chimie, Université de Montréal, Montréal, Québec H3C 3J7 Canada
| | - Thierry Maris
- Département de Chimie, Université de Montréal, Montréal, Québec H3C 3J7 Canada
| | - Pedro M. Aguiar
- Département de Chimie, Université de Montréal, Montréal, Québec H3C 3J7 Canada
| | - James D. Wuest
- Département de Chimie, Université de Montréal, Montréal, Québec H3C 3J7 Canada
| |
Collapse
|
20
|
Cooperative H-bonds, π⋯π and anion⋯π interactions as driving forces in the construction of novel Cu(II) bis(imidazol-2-yl) supramolecular 3D frameworks. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.06.054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
21
|
Lanigan N, Assoud A, Zhang W, Wang X. Aromatic Embrace Motifs for Bulk Supramolecular Polymers. Chemistry 2019; 25:12221-12227. [PMID: 31348836 DOI: 10.1002/chem.201903138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Indexed: 11/07/2022]
Abstract
Frequently encountered in crystalline materials, aromatic embraces (AEs) are formed when arylated molecules interact through multiple concerted aromatic interactions. AEs are a robust motif that is suitable for the preparation of amorphous bulk supramolecular polymers (BSPs). Crystal engineering revealed that the polymorphic compound (PPh3 )(Cp)Fe(CO){CO(CH2 )5 CH3 } (Cp=cyclopentadienyl), known as FpC6 , assembled into various chain structures through several AE motifs. Upon melting, FpC6 always adopted the same AE motif, which extended into the corresponding embracing "ladder" chains. The resultant BSP displayed typical polymer behaviour, including the presence of a glass transition and viscoelasticity, which allowed the effect of thermal history on the polymerisation behaviour to be explored. The ladder chains formed by the AE remain assembled at temperatures of up to 130 °C and were able to effectively suppress crystallisation during cooling. The ability of the AE to form chains at high temperatures and suppress crystallisation is a new opportunity to advance the field of BSPs and supramolecular chemistry.
Collapse
Affiliation(s)
- Nicholas Lanigan
- Department of Chemistry, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Abdeljalil Assoud
- Department of Chemistry, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Wei Zhang
- Department of Engineering Mechanics, Dalian University of Technology, Dalian, Liaoning, 116024, P.R. China
| | - Xiaosong Wang
- Department of Chemistry, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| |
Collapse
|
22
|
Halcrow MA, Capel Berdiell I, Pask CM, Kulmaczewski R. Relationship between the Molecular Structure and Switching Temperature in a Library of Spin-Crossover Molecular Materials. Inorg Chem 2019; 58:9811-9821. [PMID: 31335133 DOI: 10.1021/acs.inorgchem.9b00843] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Structure-function relationships relating the spin-crossover (SCO) midpoint temperature (T1/2) in the solid state are surveyed for 43 members of the iron(II) dipyrazolylpyridine family of SCO compounds. The difference between T1/2 in the solid state and in solution [ΔT(latt)] is proposed as a measure of the lattice contribution to the transition temperature. Negative linear correlations between the SCO temperature and the magnitude of the rearrangement of the coordination sphere during SCO are evident among isostructural or near-isostructural subsets of compounds; that is, a larger change in the molecular structure during SCO stabilizes the high-spin state of a material. Improved correlations are often obtained when ΔT(latt), rather than the raw T1/2 value, is considered as the measure of the SCO temperature. Different lattice types show different tendencies to stabilize the high-spin or low-spin state of the molecules they contain, which correlates with the structural changes that most influence ΔT(latt) in each case. These relationships are mostly unaffected by the SCO cooperativity in the compounds or by the involvement of any crystallographic phase changes. One or two materials within each subset are outliers in some or all of these correlations, however, which, in some cases, can be attributed to small differences in their ligand geometry or unusual phase behavior during SCO. A reinvestigation of the structural chemistry of [Fe(3-bpp)2][NCS]2·nH2O [3-bpp = bis(1H-pyrazol-3-yl)pyridine; n = 0 or 2], undertaken as part of this study, is also presented.
Collapse
Affiliation(s)
- Malcolm A Halcrow
- School of Chemistry , University of Leeds , Woodhouse Lane , Leeds LS2 9JT , U.K
| | - Izar Capel Berdiell
- School of Chemistry , University of Leeds , Woodhouse Lane , Leeds LS2 9JT , U.K
| | - Christopher M Pask
- School of Chemistry , University of Leeds , Woodhouse Lane , Leeds LS2 9JT , U.K
| | - Rafal Kulmaczewski
- School of Chemistry , University of Leeds , Woodhouse Lane , Leeds LS2 9JT , U.K
| |
Collapse
|
23
|
Dehnhardt N, Böth A, Heine J. Surprising discoveries on the way to an old compound: four transient iodido antimonates. Dalton Trans 2019; 48:5222-5229. [PMID: 30896695 DOI: 10.1039/c9dt00575g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
During the synthesis of the literature-known iodido antimonate [Cu(MeCN)4]4[Sb3I11]2 (MeCN = acetonitrile), four transient compounds, [Cu(MeCN)4]4[Sb6I22]·2MeCN (1), [Cu(MeCN)4]4[Sb7I25]·MeCN (2), [Cu(MeCN)4]4[Sb10I34] (3) and [Cu(MeCN)4]4[Sb8I28] (4), were identified. The compounds appeared within hours or days and subsequently re-dissolved in the mother liquor, leading to [Cu(MeCN)4]4[Sb3I11]2 as the final product. Single crystal X-ray analysis showed that all four compounds feature unprecedented anion motifs.
Collapse
Affiliation(s)
- Natalie Dehnhardt
- Department of Chemistry and Material Sciences Center, Philipps-Universität Marburg, Hans-Meerwein-Straße, 35043 Marburg, Germany.
| | | | | |
Collapse
|
24
|
Kobra K, Li Y, Sachdeva R, McMillen CD, Pennington WT. New polymorphism and structural sensitivity in triphenylmethylphosphonium trihalide salts. NEW J CHEM 2019. [DOI: 10.1039/c9nj01846h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PPh3MeX3 (X = I, Br) is studied on the basis of temperature and halide composition revealing new polymorphism structure types.
Collapse
Affiliation(s)
| | - Yuxuan Li
- Department of Chemistry
- Clemson University
- Clemson
- USA
| | | | | | | |
Collapse
|
25
|
Bendzińska-Berus W, Jelecki M, Kwit M, Rychlewska U. Transfer of chirality in N-triphenylacetylamino acids and chiral derivatives of N-triphenylacetyl Gly–Gly dipeptide and control of their assembly with steric constraints. CrystEngComm 2019. [DOI: 10.1039/c9ce00429g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The N-triphenylacetyl group is utilized as a reporter of chirality and as a supramolecular protecting group for α-amino acid and peptide derivatives.
Collapse
Affiliation(s)
| | - Maciej Jelecki
- Faculty of Chemistry
- Adam Mickiewicz University
- 61-614 Poznań
- Poland
- Centre for Advanced Technologies
| | - Marcin Kwit
- Faculty of Chemistry
- Adam Mickiewicz University
- 61-614 Poznań
- Poland
- Centre for Advanced Technologies
| | | |
Collapse
|
26
|
Sánchez-Viveros JM, Bucio-Ortega J, Ortiz-Pastrana N, Olguín J. Mononuclear complexes of Fe II, Co II and Co III containing imine-based ligands of 8-aminoquinoline and 7-aminoindazole: spin state tuning of Fe II complexes in solution. NEW J CHEM 2019. [DOI: 10.1039/c9nj01622h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Careful selection of the fused ring heterocycle and aldehyde synthons resulted in the spin state tuning of iron(ii) complexes in solution.
Collapse
Affiliation(s)
- José Manuel Sánchez-Viveros
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav)
- Ciudad de México 07360
- Mexico
| | - Job Bucio-Ortega
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav)
- Ciudad de México 07360
- Mexico
| | - Naytzé Ortiz-Pastrana
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav)
- Ciudad de México 07360
- Mexico
| | - Juan Olguín
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav)
- Ciudad de México 07360
- Mexico
| |
Collapse
|
27
|
Douib H, Cornet L, Gonzalez JF, Trzop E, Dorcet V, Gouasmia A, Ouahab L, Cador O, Pointillart F. Spin‐Crossover and Field‐Induced Single‐Molecule Magnet Behaviour in Metal(II)‐Dipyrazolylpyridine Complexes. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800819] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Haiet Douib
- CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226, F Univ Rennes ‐35000 Rennes France
- Laboratoire des Matériaux Organiques et Hétérochimie (LMOH) Département de sciences de la matière Université de Tébessa Rue de Constantine 12002 Tébessa Algérie
| | - Louis Cornet
- CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226, F Univ Rennes ‐35000 Rennes France
| | - Jessica Flores Gonzalez
- CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226, F Univ Rennes ‐35000 Rennes France
| | - Elzbieta Trzop
- Institut de Physique de Rennes Université de Rennes 1, UMR UR1‐CNRS 6251 Rennes France
| | - Vincent Dorcet
- CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226, F Univ Rennes ‐35000 Rennes France
| | - Abdelkrim Gouasmia
- Laboratoire des Matériaux Organiques et Hétérochimie (LMOH) Département de sciences de la matière Université de Tébessa Rue de Constantine 12002 Tébessa Algérie
| | - Lahcène Ouahab
- CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226, F Univ Rennes ‐35000 Rennes France
| | - Olivier Cador
- CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226, F Univ Rennes ‐35000 Rennes France
| | - Fabrice Pointillart
- CNRS ISCR (Institut des Sciences Chimiques de Rennes) ‐ UMR 6226, F Univ Rennes ‐35000 Rennes France
| |
Collapse
|
28
|
Vaquero M, Ruiz-Riaguas A, Martínez-Alonso M, Jalón FA, Manzano BR, Rodríguez AM, García-Herbosa G, Carbayo A, García B, Espino G. Selective Photooxidation of Sulfides Catalyzed by Bis-cyclometalated IrIII
Photosensitizers Bearing 2,2′-Dipyridylamine-Based Ligands. Chemistry 2018; 24:10662-10671. [DOI: 10.1002/chem.201801173] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 05/16/2018] [Indexed: 01/10/2023]
Affiliation(s)
- Mónica Vaquero
- Departamento de Química; Facultad de Ciencias; Universidad de Burgos; Plaza Misael Bañuelos s/n 09001 Burgos Spain
| | - Alba Ruiz-Riaguas
- Departamento de Química; Facultad de Ciencias; Universidad de Burgos; Plaza Misael Bañuelos s/n 09001 Burgos Spain
| | - Marta Martínez-Alonso
- Departamento de Química; Facultad de Ciencias; Universidad de Burgos; Plaza Misael Bañuelos s/n 09001 Burgos Spain
| | - Félix A. Jalón
- Departamento de Química Inorgánica, Orgánica y Bioquímica; Facultad de Químicas; Universidad de Castilla-La Mancha; Avda. Camilo J. Cela 10 13071 Ciudad Real Spain
| | - Blanca R. Manzano
- Departamento de Química Inorgánica, Orgánica y Bioquímica; Facultad de Químicas; Universidad de Castilla-La Mancha; Avda. Camilo J. Cela 10 13071 Ciudad Real Spain
| | - Ana M. Rodríguez
- Departamento de Química Inorgánica, Orgánica y Bioquímica; Facultad de Químicas; Universidad de Castilla-La Mancha; Avda. Camilo J. Cela 10 13071 Ciudad Real Spain
| | - Gabriel García-Herbosa
- Departamento de Química; Facultad de Ciencias; Universidad de Burgos; Plaza Misael Bañuelos s/n 09001 Burgos Spain
| | - Arancha Carbayo
- Departamento de Química; Facultad de Ciencias; Universidad de Burgos; Plaza Misael Bañuelos s/n 09001 Burgos Spain
| | - Begoña García
- Departamento de Química; Facultad de Ciencias; Universidad de Burgos; Plaza Misael Bañuelos s/n 09001 Burgos Spain
| | - Gustavo Espino
- Departamento de Química; Facultad de Ciencias; Universidad de Burgos; Plaza Misael Bañuelos s/n 09001 Burgos Spain
| |
Collapse
|
29
|
Chang AS, Pintauer T, Basu P, Eckenhoff WT. Structural and Electronic Investigation of Tetrachalcogenidomolybdate Dianions. ChemistrySelect 2018. [DOI: 10.1002/slct.201800506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alison S. Chang
- Department of Chemistry Rhodes College 2000 N. Parkway Memphis TN 38112
| | - Tomislav Pintauer
- Department of Chemistry and Biochemistry Duquesne University 600 Forbes Ave., 308 Mellon Hall Pittsburgh PA 15282
| | - Partha Basu
- Department of Chemistry and Chemical Biology Indiana University-Purdue University Indianapolis 420 N. Blackford St. Indianapolis IN 46202
| | | |
Collapse
|
30
|
Mohamad R, Awang N, Kamaludin NF, Jotani MM, Tiekink ERT. Crystal structures and Hirshfeld surface analyses of ( N-hexyl- N-methyl-dithio-carbamato-κ 2S, S')triphenyl-tin(IV) and [ N-methyl- N-(2-phenyl-ethyl)-dithio-carbamato-κ 2S, S']tri-phenyl-tin(IV). Acta Crystallogr E Crystallogr Commun 2018; 74:630-637. [PMID: 29850080 PMCID: PMC5947476 DOI: 10.1107/s2056989018005133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 03/30/2018] [Indexed: 11/29/2022]
Abstract
The crystal and mol-ecular structures of two tri-phenyl-tin di-thio-carbamate compounds, viz. [Sn(C6H5)3(C8H16NS2)], (I), and [Sn(C6H5)3(C10H12NS2)], (II), are described. The di-thio-carbamate ligand in each mol-ecule coordinates in an asymmetric fashion resulting in heavily distorted tetra-hedral C3S coordin-ation geometries for the Sn atoms, with the distortions traced to the close approach of the non-coordinating thione-S atom. The mol-ecular packing in both compounds features C-H⋯π(Sn-phen-yl) inter-actions. In (I), the donors are Sn-phenyl-C-H groups leading to centrosymmetric aggregates, while in (II), the donors are both Sn-phenyl-C-H and methyl-C-H groups leading to supra-molecular chains propagating along the b axis. The identified aggregates assemble into their respective crystals with no directional inter-actions between them. An analysis of the Hirshfeld surfaces show distinctive patterns, but an overwhelming predominance (>99% in each case) of H⋯H, C⋯H/H⋯C and S⋯H/H⋯S contacts on the respective Hirshfeld surface.
Collapse
Affiliation(s)
- Rapidah Mohamad
- Biomedical Science Programme, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
| | - Normah Awang
- Environmental Health and Industrial Safety Programme, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
| | - Nurul Farahana Kamaludin
- Environmental Health and Industrial Safety Programme, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
| | - Mukesh M. Jotani
- Department of Physics, Bhavan’s Sheth R. A. College of Science, Ahmedabad, Gujarat 380001, India
| | - Edward R. T. Tiekink
- Research Centre for Crystalline Materials, School of Science and Technology, Sunway University, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia
| |
Collapse
|
31
|
Tsukiashi A, Nakaya M, Kobayashi F, Ohtani R, Nakamura M, Harrowfield JM, Kim Y, Hayami S. Intermolecular Interaction Tuning of Spin-Crossover Iron(III) Complexes with Aromatic Counteranions. Inorg Chem 2018; 57:2834-2842. [PMID: 29461818 DOI: 10.1021/acs.inorgchem.7b03126] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Iron(III) spin-crossover (SCO) complexes [Fe(qsal)2]BS·MeOH·H2O (1), [Fe(qsal)2](NS)·MeOH (2), [Fe(qnal)2](NS) (3), and [Fe(qnal)2]PS·MeOH·CH2Cl2 (4) (Hqsal, N-(8-quinolinyl)salicylaldimine; Hqnal, N-(8-quinolinyl)-2-hydroxy-1-naphthaldimine; BS, benzenesulfonate; NS, 1-naphthalenesulfonate; PS, 1-pyrenesulfonate) have been synthesized and characterized by X-ray structure determinations and temperature-dependent magnetic susceptibility measurements. The aromatic counteranions BS, NS, and PS can be used for the tuning of intermolecular coupling through a variety of weak interactions. All of the complexes show temperature-dependent SCO behavior. but the light-induced excited spin-state trapping (LIESST) effect was observed only for 1, 3, and 4 when the samples were illuminated (λ 808 nm) for 1 h at 5 K. In particular, 59% of the LS form of 1 was converted to the metastable HS state by illumination, equal to the highest degree of conversion yet known for LIESST in [Fe(qsal)2]+ derivatives. The lack of a LIESST effect for 2 may be due to the relatively limited degree of interaction between the cations and anions in the lattice, reflected in a much longer minimum Fe···Fe separation in this complex in comparison to the others.
Collapse
Affiliation(s)
- Asami Tsukiashi
- Department of Chemistry, Faculty of Advanced Science and Technology , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Manabu Nakaya
- Department of Chemistry, Faculty of Advanced Science and Technology , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Fumiya Kobayashi
- Department of Chemistry, Faculty of Advanced Science and Technology , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Ryo Ohtani
- Department of Chemistry, Faculty of Advanced Science and Technology , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Masaaki Nakamura
- Department of Chemistry, Faculty of Advanced Science and Technology , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Jack M Harrowfield
- ISIS , Université de Strasbourg , 8 allée Gaspard Monge , 67083 Strasbourg , France
| | - Yang Kim
- Department of Chemistry, Faculty of Advanced Science and Technology , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| | - Shinya Hayami
- Department of Chemistry, Faculty of Advanced Science and Technology , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan.,Institute of Pulsed Power Science (IPPS) , Kumamoto University , 2-39-1 Kurokami , Chuo-ku, Kumamoto 860-8555 , Japan
| |
Collapse
|
32
|
Smith JN, Hook JM, Lucas NT. Superphenylphosphines: Nanographene-Based Ligands That Control Coordination Geometry and Drive Supramolecular Assembly. J Am Chem Soc 2018; 140:1131-1141. [PMID: 29253338 DOI: 10.1021/jacs.7b12251] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Tertiary phosphines remain widely utilized in synthesis, most notably as supporting ligands in metal complexes. A series of triarylphosphines bearing one to three hexa-peri-hexabenzocoronene (HBC) substituents has been prepared by an efficient divergent route. These "superphenylphosphines", P{HBC(t-Bu)5}nPh3-n (n = 1-3), form the palladium complexes PdCl2L2 and Pd2Cl4L2 where the isomer distribution in solution is dependent on the number of HBC substituents. The crystalline structures of five complexes all show intramolecular π-stacking between HBC-phosphines to form a supramolecular bidentate-like ligand that distorts the metal coordination geometry. When n = 2 or 3, the additional HBC substituents engage in intermolecular π-stacking to assemble the complexes into continuous ribbons or sheets. The phosphines adopt HBC's characteristics including strong optical absorption, green emission, and redox activity.
Collapse
Affiliation(s)
- Jordan N Smith
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Chemistry, University of Otago , Union Place, Dunedin 9016, New Zealand
| | - James M Hook
- Mark Wainwright Analytical Centre, University of New South Wales , Sydney, NSW 2052, Australia
| | - Nigel T Lucas
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Chemistry, University of Otago , Union Place, Dunedin 9016, New Zealand
| |
Collapse
|
33
|
Kobra K, O’Donnell S, Ferrari A, McMillen CD, Pennington WT. Halogen bonding and triiodide asymmetry in cocrystals of triphenylmethylphosphonium triiodide with organoiodines. NEW J CHEM 2018. [DOI: 10.1039/c8nj01373j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Halogen bonding in triiodide–organoiodine cocrystals.
Collapse
|
34
|
Gunawardana CA, Đaković M, Aakeröy CB. Diamondoid architectures from halogen-bonded halides. Chem Commun (Camb) 2018; 54:607-610. [DOI: 10.1039/c7cc08839f] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Halide ions and tetraiodoethynyl-featured tetraphenylmethane are successfully assembled into robust diamond-like networks in the presence of tetraphenylphosphonium cations.
Collapse
Affiliation(s)
| | - M. Đaković
- Department of Chemistry
- Faculty of Science
- University of Zagreb
- Horvatovac 102a
- Croatia
| | - C. B. Aakeröy
- Department of Chemistry
- Kansas State University
- Manhattan
- USA
| |
Collapse
|
35
|
Halcrow MA, Chastanet G. Spin-crossover and the LIESST effect in [Fe x Co 1‒ x (bpp) 2 ][BF 4 ] 2 (1.00 ≤ x ≤ 0.77). Comparison with bifunctional solid solutions of iron and cobalt spin-crossover centers. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.01.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
36
|
Androš Dubraja L, Jurić M, Torić F, Pajić D. The influence of metal centres on the exchange interaction in heterometallic complexes with oxalate-bridged cations. Dalton Trans 2017; 46:11748-11756. [PMID: 28828439 DOI: 10.1039/c7dt02522j] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of bis(phenanthroline)metal(ii) cations (M = Mn2+, Co2+, Ni2+, Cu2+ and Zn2+) with bis(oxalato)chromium(iii) anions in a water/ethanol solution gives rise to a series of compounds with oxalate-bridged cations, [{M(phen)2}2(μ-C2O4)][Cr(phen)(C2O4)2]2·4H2O [Mn2Cr2 (1), Co2Cr2 (2), Ni2Cr2 (3), Cu2Cr2 (4) and Zn2Cr2 (5)]. Their structural analysis reveals that all the prepared compounds crystallize in the triclinic system, space group P1[combining macron], having similar unit cell parameters, molecular structures and crystal packing features. All metal centres in 1-5 are octahedrally coordinated: M2+ in homodinuclear cations are coordinated with two phen molecules and one bridging oxalate ligand; Cr3+ in anions is coordinated with one phen ligand and two bidentate oxalate groups. The copper atom in Cu2Cr2 (4) exhibits a Jahn-Teller-distorted octahedral coordination. Owing to the considerable number of pyridyl groups present in 1-5 (from phen ligands) the crystal packing of cations and anions is driven by stacking interactions appearing in offset-face-to-face (OFF) and edge-to-face (EF) orientations. The hydrogen bonds between the anions and water molecules of crystallization form 1D ladder-like motifs. In addition to the single crystal X-ray diffraction studies, the characterization of the new complexes was accomplished by means of IR and UV/Vis spectroscopy and magnetization measurements on a SQUID magnetometer. The temperature dependence of magnetic susceptibility reveals different magnetic super exchange interactions taking place in homodinuclear oxalate-bridged cations depending on the transition metal centre (Mn2+, Co2+, Ni2+ and Cu2+). Oxalate ligands mediate the ferromagnetic coupling of Cu2+ metal cations in Cu2Cr2 (4), whereas in Mn2Cr2 (1), Co2Cr2 (2) and Ni2Cr2 (3), antiferromagnetic interactions are observed between Mn2+, Co2+ and Ni2+ cations, respectively. Also, relatively large zero-field splitting parameters for Cr3+ ions (from mononuclear anions), D ≈ 1 cm-1, were observed.
Collapse
|
37
|
Biological and structural studies of phosphonium ‘masked thiolate’ compounds. Eur J Med Chem 2017; 125:528-537. [DOI: 10.1016/j.ejmech.2016.08.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 08/11/2016] [Accepted: 08/12/2016] [Indexed: 01/09/2023]
|
38
|
Abstract
Molecular coordination shells have been used to classify crystal structures into similarity groups.
Collapse
|
39
|
Rahm M, Hoffmann R, Ashcroft NW. Atomic and Ionic Radii of Elements 1
–96. Chemistry 2016; 22:14625-32. [DOI: 10.1002/chem.201602949] [Citation(s) in RCA: 160] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Martin Rahm
- Department of Chemistry and Chemical Biology Cornell University Ithaca New York 14853 USA
| | - Roald Hoffmann
- Department of Chemistry and Chemical Biology Cornell University Ithaca New York 14853 USA
| | - N. W. Ashcroft
- Laboratory of Atomic and Solid State Physics Cornell University Ithaca New York 14853 USA
| |
Collapse
|
40
|
Manzano BR, Jalón FA, Carrión MC, Durá G. Bis(pyrazol-1-yl)(pyridin-x-yl)methane Ligands - Mono- or Ditopic Ligands in Complexes and Supramolecular Frameworks. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501271] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Blanca R. Manzano
- Departamento de Química Inorgánica, Orgánica y Bioquímica; Facultad de Ciencias y Tecnologías Químicas-IRICA; Universidad de Castilla-La Mancha; Avda. C. J. Cela, 10 13071 Ciudad Real Spain
| | - Félix A. Jalón
- Departamento de Química Inorgánica, Orgánica y Bioquímica; Facultad de Ciencias y Tecnologías Químicas-IRICA; Universidad de Castilla-La Mancha; Avda. C. J. Cela, 10 13071 Ciudad Real Spain
| | - M. Carmen Carrión
- Departamento de Química Inorgánica, Orgánica y Bioquímica; Facultad de Ciencias y Tecnologías Químicas-IRICA; Universidad de Castilla-La Mancha; Avda. C. J. Cela, 10 13071 Ciudad Real Spain
- Facultad de Ciencias y Tecnologías Químicas-IRICA; Fundación Parque Científico y Tecnológico de Castilla-La Mancha (Fundación PCTCLM); Bulevar Río Alberche s/n 45007 Toledo Spain
| | - Gema Durá
- Departamento de Química Inorgánica, Orgánica y Bioquímica; Facultad de Ciencias y Tecnologías Químicas-IRICA; Universidad de Castilla-La Mancha; Avda. C. J. Cela, 10 13071 Ciudad Real Spain
| |
Collapse
|
41
|
Molitor S, Mahler C, Gessner VH. Synthesis and solid-state structures of gold(i) complexes of diphosphines. NEW J CHEM 2016. [DOI: 10.1039/c6nj00786d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of diphosphine bis(gold) complexes were synthesised and the importance of aurophilic interactions for their structure formation was studied.
Collapse
Affiliation(s)
- Sebastian Molitor
- Institut für Anorganische Chemie
- Julius-Maximilians-Universität Würzburg
- 97074 Würzburg
- Germany
| | - Christoph Mahler
- Institut für Anorganische Chemie
- Julius-Maximilians-Universität Würzburg
- 97074 Würzburg
- Germany
| | - Viktoria H. Gessner
- Institut für Anorganische Chemie
- Julius-Maximilians-Universität Würzburg
- 97074 Würzburg
- Germany
| |
Collapse
|
42
|
Durá G, Carrión MC, Jalón FA, Manzano BR, Rodríguez AM. Formation of Mono‐, Di‐ and Trinuclear Species in the Self‐Assembly of Bis(pyrazolyl)(pyridin‐3‐yl)methane Ligands and Metals with Different Coordination Geometries. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201501077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gema Durá
- Universidad de Castilla‐La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas‐IRICA, Avda. C. J. Cela, 10, 13071 Ciudad Real, Spain, http://www.uclm.es/grupo/qca/
| | - M. Carmen Carrión
- Universidad de Castilla‐La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas‐IRICA, Avda. C. J. Cela, 10, 13071 Ciudad Real, Spain, http://www.uclm.es/grupo/qca/
- Fundación Parque Científico y Tecnológico de Castilla‐La Mancha (Fundación PCTCLM), Bulevar Río Alberche s/n, 45007 Toledo, Spain
| | - Félix A. Jalón
- Universidad de Castilla‐La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas‐IRICA, Avda. C. J. Cela, 10, 13071 Ciudad Real, Spain, http://www.uclm.es/grupo/qca/
| | - Blanca R. Manzano
- Universidad de Castilla‐La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas‐IRICA, Avda. C. J. Cela, 10, 13071 Ciudad Real, Spain, http://www.uclm.es/grupo/qca/
| | - Ana M. Rodríguez
- Universidad de Castilla‐La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica, Escuela Técnica Superior de Ingenieros Industriales, Avda. C. J. Cela, 3, 13071 Ciudad Real, Spain
| |
Collapse
|
43
|
Beaudoin D, Levasseur-Grenon O, Maris T, Wuest JD. Building Giant Carbocycles by Reversible C−C Bond Formation. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509608] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Daniel Beaudoin
- Département de Chimie; Université de Montréal; Montréal Québec H3C 3J7 Canada
| | | | - Thierry Maris
- Département de Chimie; Université de Montréal; Montréal Québec H3C 3J7 Canada
| | - James D. Wuest
- Département de Chimie; Université de Montréal; Montréal Québec H3C 3J7 Canada
| |
Collapse
|
44
|
Beaudoin D, Levasseur-Grenon O, Maris T, Wuest JD. Building Giant Carbocycles by Reversible C−C Bond Formation. Angew Chem Int Ed Engl 2015; 55:894-8. [DOI: 10.1002/anie.201509608] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Indexed: 12/16/2022]
Affiliation(s)
- Daniel Beaudoin
- Département de Chimie; Université de Montréal; Montréal Québec H3C 3J7 Canada
| | | | - Thierry Maris
- Département de Chimie; Université de Montréal; Montréal Québec H3C 3J7 Canada
| | - James D. Wuest
- Département de Chimie; Université de Montréal; Montréal Québec H3C 3J7 Canada
| |
Collapse
|
45
|
Interlocked aromatic species: Crystal structure and Hirshfeld surface analysis of the uranyl ion complex of 3-(pyrimidin-2-yl)benzoate with Ni(phen) 3 2+ counter-ions. INORG CHEM COMMUN 2015. [DOI: 10.1016/j.inoche.2015.06.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
46
|
Kershaw Cook LJ, Thorp-Greenwood FL, Comyn TP, Cespedes O, Chastanet G, Halcrow MA. Unexpected Spin-Crossover and a Low-Pressure Phase Change in an Iron(II)/Dipyrazolylpyridine Complex Exhibiting a High-Spin Jahn–Teller Distortion. Inorg Chem 2015; 54:6319-30. [DOI: 10.1021/acs.inorgchem.5b00614] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Tim P. Comyn
- Institute
for Materials Research, School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Oscar Cespedes
- School of Physics and Astronomy, University of Leeds, E. C. Stoner Building, Leeds LS2 9JT, United Kingdom
| | | | - Malcolm A. Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, United Kingdom
| |
Collapse
|
47
|
Arcos-Ramos R, Rodriguez-Molina B, Gonzalez-Rodriguez E, Ramirez-Montes PI, Ochoa ME, Santillan R, Farfán N, Garcia-Garibay MA. Crystalline arrays of molecular rotors with TIPS-trityl and phenolic-trityl stators using phenylene, 1,2-difluorophenylene and pyridine rotators. RSC Adv 2015. [DOI: 10.1039/c5ra07422c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Molecular rotors based on substituted-trityl stators provide crystalline arrays capable of supporting different rotators through non-covalent interactions.
Collapse
Affiliation(s)
- Rafael Arcos-Ramos
- Facultad de Química
- Departamento de Química Orgánica
- Universidad Nacional Autónoma de México
- 04510 México
- México
| | - Braulio Rodriguez-Molina
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior
- Ciudad Universitaria
- 04510 México
| | - E. Gonzalez-Rodriguez
- Facultad de Química
- Departamento de Química Orgánica
- Universidad Nacional Autónoma de México
- 04510 México
- México
| | | | - Maria Eugenia Ochoa
- Departamento de Química
- Centro de Investigación y Estudios Avanzados del IPN
- México
- México
| | - Rosa Santillan
- Departamento de Química
- Centro de Investigación y Estudios Avanzados del IPN
- México
- México
| | - Norberto Farfán
- Facultad de Química
- Departamento de Química Orgánica
- Universidad Nacional Autónoma de México
- 04510 México
- México
| | | |
Collapse
|
48
|
Dubraja LA, Matković-Čalogović D, Planinić P. Crystal disassembly and reassembly of heterometallic Ni II–Ta Voxalate compounds. CrystEngComm 2015. [DOI: 10.1039/c4ce02516d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
49
|
Dance I. Protonation of bridging sulfur in cubanoid Fe4S4 clusters causes large geometric changes: the theory of geometric and electronic structure. Dalton Trans 2015; 44:4707-17. [DOI: 10.1039/c4dt03681f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Density functional calculations indicate that protonation of a μ3-S atom in cubanoid clusters [Fe4S4X4]2− leads to a large extension of one Fe–S(H) bond such that the SH ligand is doubly-bridging, μ-SH.
Collapse
Affiliation(s)
- Ian Dance
- School of Chemistry
- University of New South Wales
- Sydney 2052
- Australia
| |
Collapse
|
50
|
Mou Z, Uchida K, Kubo T, Kertesz M. Evidence of σ- and π-Dimerization in a Series of Phenalenyls. J Am Chem Soc 2014; 136:18009-22. [DOI: 10.1021/ja509243p] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Zhongyu Mou
- Department
of Chemistry, Georgetown University, Washington, D.C. 20057, United States
| | - Kazuyuki Uchida
- Department
of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Takashi Kubo
- Department
of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Miklos Kertesz
- Department
of Chemistry, Georgetown University, Washington, D.C. 20057, United States
| |
Collapse
|