1
|
Ekawa B, Diogo HP, Castro RAE, Caires FJ, Eusébio MES. Coamorphous Systems of Valsartan: Thermal Analysis Contribution to Evaluate Intermolecular Interactions Effects on the Structural Relaxation. Molecules 2023; 28:6240. [PMID: 37687071 PMCID: PMC10488875 DOI: 10.3390/molecules28176240] [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: 07/10/2023] [Revised: 08/02/2023] [Accepted: 08/21/2023] [Indexed: 09/10/2023] Open
Abstract
Coamorphous formation in binary systems of valsartan (Val) with 4,4'-bipyridine (Bipy) and trimethoprim (Tri) was investigated for mixtures with a mole fraction of 0.16~0.86 of valsartan and evaluated in terms of the glass transition temperature. The glass transition of the systems had a behavior outside the values predicted by the Gordon-Taylor equation, showing that Val-Bipy (hydrogen bonding between the components) had a lower deviation and Val-Tri (ionic bonding between the components) had a higher deviation. Mixtures of compositions 2:1 Val-Bipy and 1:1 Val-Tri were selected for further investigation and verified to be stable, as no crystallization was observed during subsequent heating and cooling programs. For these systems, the effective activation energy during glass transition was evaluated. Compared to pure valsartan, the system with the lower glass transition temperature (Val-Bipy) presented the highest effective activation energy, and the system with the higher glass transition temperature (Val-Tri) presented a lower effective activation energy. The results presented a good correlation between the data obtained from two different techniques to determine the fragility and effective activation energy: non-isothermal kinetic analysis by DSC and TSDC.
Collapse
Affiliation(s)
- Bruno Ekawa
- Institute of Chemistry, São Paulo State University (UNESP), Araraquara 14801-970, Brazil;
- Coimbra Chemistry Center, Institute of Molecular Sciences, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal;
| | - Hermínio P. Diogo
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal;
| | - Ricardo A. E. Castro
- Coimbra Chemistry Center, Institute of Molecular Sciences, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal;
| | - Flávio J. Caires
- School of Sciences, São Paulo State University (UNESP), Bauru 17033-360, Brazil
| | - M. Ermelinda S. Eusébio
- Coimbra Chemistry Center, Institute of Molecular Sciences, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal;
| |
Collapse
|
2
|
Braun DE, Hald P, Kahlenberg V, Griesser UJ. Expanding the Solid Form Landscape of Bipyridines. CRYSTAL GROWTH & DESIGN 2021; 21:7201-7217. [PMID: 34867088 PMCID: PMC8640990 DOI: 10.1021/acs.cgd.1c01045] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/19/2021] [Indexed: 06/13/2023]
Abstract
Two bipyridine isomers (2,2'- and 4,4'-), used as coformers and ligands in coordination chemistry, were subjected to solid form screening and crystal structure prediction. One anhydrate and a formic acid disolvate were crystallized for 2,2'-bipyridine, whereas multiple solid-state forms, anhydrate, dihydrate, and eight solvates with carboxylic acids, including a polymorphic acetic acid disolvate, were found for the 4,4'-isomer. Seven of the solvates are reported for the first time, and structural information is provided for six of the new solvates. All twelve solid-state forms were investigated comprehensively using experimental [thermal analysis, isothermal calorimetry, X-ray diffraction, gravimetric moisture (de)sorption, and IR spectroscopy] and computational approaches. Lattice and interaction energy calculations confirmed the thermodynamic driving force for disolvate formation, mediated by the absence of H-bond donor groups of the host molecules. The exposed location of the N atoms in 4,4'-bipyridine facilitates the accommodation of bigger carboxylic acids and leads to higher conformational flexibility compared to 2,2'-bipyridine. For the 4,4'-bipyridine anhydrate ↔ hydrate interconversion hardly any hysteresis and a fast transformation kinetics are observed, with the critical relative humidity being at 35% at room temperature. The computed anhydrate crystal energy landscapes have the 2,2'-bipyridine as the lowest energy structure and the 4,4'-bipyridine among the low-energy structures and suggest a different crystallization behavior of the two compounds.
Collapse
Affiliation(s)
- Doris E. Braun
- Institute
of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Patricia Hald
- Institute
of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Volker Kahlenberg
- Institute
of Mineralogy and Petrography, University
of Innsbruck, Innrain 52, 6020 Innsbruck, Austria
| | - Ulrich J. Griesser
- Institute
of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| |
Collapse
|
3
|
Schäfer TC, Becker J, Sedykh AE, Müller‐Buschbaum K. 2D‐Coordination Polymers Constituted from Indium Halides and Dipyridyl N‐Donor Ligands. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100047] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Thomas C. Schäfer
- Institute of Inorganic Chemistry Justus-Liebig Universität Gießen Heinrich-Buff-Ring 17 35392 Gießen
| | - Jonathan Becker
- Institute of Inorganic Chemistry Justus-Liebig Universität Gießen Heinrich-Buff-Ring 17 35392 Gießen
| | - Alexander E. Sedykh
- Institute of Inorganic Chemistry Justus-Liebig Universität Gießen Heinrich-Buff-Ring 17 35392 Gießen
| | - Klaus Müller‐Buschbaum
- Institute of Inorganic Chemistry Justus-Liebig Universität Gießen Heinrich-Buff-Ring 17 35392 Gießen
- Center for Materials Research (LaMa) Justus-Liebig Universität Gießen Heinrich-Buff-Ring 16 35392 Gießen
| |
Collapse
|
4
|
Richard J, Joseph J, Wang C, Ciesielski A, Weiss J, Samorì P, Mamane V, Wytko JA. Functionalized 4,4'-Bipyridines: Synthesis and 2D Organization on Highly Oriented Pyrolytic Graphite. J Org Chem 2021; 86:3356-3366. [PMID: 33539085 DOI: 10.1021/acs.joc.0c02708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Commercial 4,4'-bipyridine is a popular scaffold that is primarily employed as a linker in 3D self-assembled architectures such as metallo-organic frameworks or as a connector in 2D networks. The introduction of alkyl substituents on the bipyridine skeleton is instrumental when 4,4'-bipyridines are used as linkers to form 2D self-assembled patterns on surfaces. Here, several synthetic strategies to access 4,4'-bipyridines functionalized at various positions are described. These easily scalable reactions have been used to introduce a range of alkyl substituents at positions 2 and 2' or 3 and 3' and at positions 2,2' and 6,6' in the case of tetra-functionalization. Scanning tunneling microscopy studies of molecular monolayers physisorbed at the graphite-solution interface revealed different supramolecular patterns whose motifs are primarily dictated by the nature and position of the alkyl chains.
Collapse
Affiliation(s)
- Jimmy Richard
- Institut de Chimie de Strasbourg, UMR 7177, CNRS-Université de Strasbourg, 1 rue Blaise Pascal, 67000 Strasbourg, France
| | - Jean Joseph
- Institut de Chimie de Strasbourg, UMR 7177, CNRS-Université de Strasbourg, 1 rue Blaise Pascal, 67000 Strasbourg, France
| | - Can Wang
- Université de Strasbourg and CNRS, ISIS, 8 allée Gaspard Monge, 67000 Strasbourg, France
| | - Artur Ciesielski
- Université de Strasbourg and CNRS, ISIS, 8 allée Gaspard Monge, 67000 Strasbourg, France
| | - Jean Weiss
- Institut de Chimie de Strasbourg, UMR 7177, CNRS-Université de Strasbourg, 1 rue Blaise Pascal, 67000 Strasbourg, France
| | - Paolo Samorì
- Université de Strasbourg and CNRS, ISIS, 8 allée Gaspard Monge, 67000 Strasbourg, France
| | - Victor Mamane
- Institut de Chimie de Strasbourg, UMR 7177, CNRS-Université de Strasbourg, 1 rue Blaise Pascal, 67000 Strasbourg, France
| | - Jennifer A Wytko
- Institut de Chimie de Strasbourg, UMR 7177, CNRS-Université de Strasbourg, 1 rue Blaise Pascal, 67000 Strasbourg, France
| |
Collapse
|
5
|
Cocrystals Based on 4,4’-bipyridine: Influence of Crystal Packing on Melting Point. CRYSTALS 2021. [DOI: 10.3390/cryst11020191] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The reactions of piperonylic acid (HPip) and cinnamic acid (HCinn) with 4,4’-bipyridine (4,4’-bipy) have been assayed using the same synthetic methodology, yielding two binary cocrystals with different acid:4,4’-bipy molar ratios, (HPip)(4,4’-bipy) (1) and (HCinn)2(4,4’-bipy) (2). The melting point (m.p.) of these cocrystals have been measured and a remarkable difference (ΔT ≈ 78 °C) between them was observed. Moreover, the two cocrystals have been characterized by powder X-ray diffraction (PXRD), elemental analysis (EA), FTIR-ATR, 1H NMR spectroscopies, and single-crystal X-ray diffraction. The study of their structural packings via Hirshfeld surface analysis and energy frameworks revealed the important contribution of the π···π and C-H···π interactions to the formation of different structural packing motifs, this being the main reason for the difference of m.p. between them. Moreover, it has been observed that 1 and 2 presented the same packing motifs as the crystal structure of their corresponding carboxylic acids, but 1 and 2 showed lower m.p. than those of the carboxylic acids, which could be related to the lower strength of the acid-pyridine heterosynthons respect to the acid-acid homosynthons in the crystal structures.
Collapse
|
6
|
Zhang Y, Zhang R, Jiang S, Zhang Y, Dong ZC. Probing Adsorption Configurations of Small Molecules on Surfaces by Single-Molecule Tip-Enhanced Raman Spectroscopy. Chemphyschem 2018; 20:37-41. [PMID: 30411453 DOI: 10.1002/cphc.201800861] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 11/03/2018] [Indexed: 11/08/2022]
Abstract
Determining the adsorption configurations of organic molecules on surfaces, especially for relatively small molecules, is a key issue for understanding the microscopic physical and chemical processes in surface science. In this work, we have applied low-temperature ultrahigh-vacuum tip-enhanced Raman scattering (TERS) technique to distinguish the configurations of small 4,4'-bipyridine (44BPY) molecules adsorbed on the Ag(111) surface. The observed Raman spectra exhibit notable differences in the spectral features which can be assigned to three different molecular orientations, each featuring a specific fingerprint pattern based on the TERS selection rule that determines the distribution of the relative intensities of different vibrational peaks. Furthermore, such a small molecule can in turn act as a local probe to provide information on the local electric field distribution at the tip apex. Our work showcases the capability of TERS technique for obtaining information on adsorption configurations of small molecules on surfaces down to the single-molecule level, which is of fundamental importance for many applications in the fields of molecular science and surface chemistry.
Collapse
Affiliation(s)
- Yao Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China Hefei, Anhui, 230026, China
| | - Rui Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China Hefei, Anhui, 230026, China
| | - Song Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China Hefei, Anhui, 230026, China
| | - Yang Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China Hefei, Anhui, 230026, China
| | - Zhen-Chao Dong
- Hefei National Laboratory for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China Hefei, Anhui, 230026, China
| |
Collapse
|
7
|
Bajpai A, Scott HS, Pham T, Chen KJ, Space B, Lusi M, Perry ML, Zaworotko MJ. Towards an understanding of the propensity for crystalline hydrate formation by molecular compounds. IUCRJ 2016; 3:430-439. [PMID: 27840682 PMCID: PMC5094445 DOI: 10.1107/s2052252516015633] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 10/04/2016] [Indexed: 05/26/2023]
Abstract
Hydrates are technologically important and ubiquitous yet they remain a poorly understood and understudied class of molecular crystals. In this work, we attempt to rationalize propensity towards hydrate formation through crystallization studies of molecules that lack strong hydrogen-bond donor groups. A Cambridge Structural Database (CSD) survey indicates that the statistical occurrence of hydrates in 124 molecules that contain five- and six-membered N-heterocyclic aromatic moieties is 18.5%. However, hydrate screening experiments on a library of 11 N-heterocyclic aromatic compounds with at least two acceptor moieties and no competing hydrogen-bond donors or acceptors reveals that over 70% of this group form hydrates, suggesting that extrapolation from CSD statistics might, at least in some cases, be deceiving. Slurrying in water and exposure to humidity were found to be the most effective discovery methods. Electrostatic potential maps and/or analysis of the crystal packing in anhydrate structures was used to rationalize why certain molecules did not readily form hydrates.
Collapse
Affiliation(s)
- Alankriti Bajpai
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Co. Limerick, Ireland
| | - Hayley S. Scott
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Co. Limerick, Ireland
| | - Tony Pham
- Department of Chemistry, CHE 205, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, USA
| | - Kai-Jie Chen
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Co. Limerick, Ireland
| | - Brian Space
- Department of Chemistry, CHE 205, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, USA
| | - Matteo Lusi
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Co. Limerick, Ireland
| | - Miranda L. Perry
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Co. Limerick, Ireland
| | - Michael J. Zaworotko
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Co. Limerick, Ireland
| |
Collapse
|
8
|
Sacchi M, Brewer AY, Jenkins SJ, Parker JE, Friščić T, Clarke SM. Combined diffraction and density functional theory calculations of halogen-bonded cocrystal monolayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:14903-14911. [PMID: 24215390 PMCID: PMC3968856 DOI: 10.1021/la402910a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 10/31/2013] [Indexed: 05/31/2023]
Abstract
This work describes the combined use of synchrotron X-ray diffraction and density functional theory (DFT) calculations to understand the cocrystal formation or phase separation in 2D monolayers capable of halogen bonding. The solid monolayer structure of 1,4-diiodobenzene (DIB) has been determined by X-ray synchrotron diffraction. The mixing behavior of DIB with 4,4'-bipyridyl (BPY) has also been studied and interestingly is found to phase-separate rather than form a cocrystal, as observed in the bulk. DFT calculations are used to establish the underlying origin of this interesting behavior. The DFT calculations are demonstrated to agree well with the recently proposed monolayer structure for the cocrystal of BPY and 1,4-diiodotetrafluorobenzene (DITFB) (the perfluorinated analogue of DIB), where halogen bonding has also been identified by diffraction. Here we have calculated an estimate of the halogen bond strength by DFT calculations for the DITFB/BPY cocrystal monolayer, which is found to be ∼20 kJ/mol. Computationally, we find that the nonfluorinated DIB and BPY are not expected to form a halogen-bonded cocrystal in a 2D layer; for this pair of species, phase separation of the components is calculated to be lower energy, in good agreement with the diffraction results.
Collapse
Affiliation(s)
- Marco Sacchi
- Department of Chemistry and Department of Chemistry and BP Institute, Cambridge University, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Adam Y. Brewer
- Department of Chemistry and Department of Chemistry and BP Institute, Cambridge University, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Stephen J. Jenkins
- Department of Chemistry and Department of Chemistry and BP Institute, Cambridge University, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Julia E. Parker
- Diamond Light
Source, Harwell Science and Innovation Campus, Didcot, Oxon, United Kingdom
| | - Tomislav Friščić
- Department of Chemistry and Department of Chemistry and BP Institute, Cambridge University, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Stuart M. Clarke
- Department of Chemistry and Department of Chemistry and BP Institute, Cambridge University, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| |
Collapse
|
9
|
Matthes PR, Nitsch J, Kuzmanoski A, Feldmann C, Steffen A, Marder TB, Müller‐Buschbaum K. The Series of Rare Earth Complexes [Ln
2
Cl
6
(μ‐4,4′‐bipy)(py)
6
], Ln=Y, Pr, Nd, Sm‐Yb: A Molecular Model System for Luminescence Properties in MOFs Based on LnCl
3
and 4,4′‐Bipyridine. Chemistry 2013; 19:17369-78. [DOI: 10.1002/chem.201302504] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Philipp R. Matthes
- Institut für Anorganische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49) 931‐3184785
| | - Jörn Nitsch
- Institut für Anorganische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49) 931‐3184785
| | - Ana Kuzmanoski
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131 Karlsruhe (Germany)
| | - Claus Feldmann
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131 Karlsruhe (Germany)
| | - Andreas Steffen
- Institut für Anorganische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49) 931‐3184785
| | - Todd B. Marder
- Institut für Anorganische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49) 931‐3184785
| | - Klaus Müller‐Buschbaum
- Institut für Anorganische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49) 931‐3184785
| |
Collapse
|
10
|
Wang X, Lee JS, Yang DS. High-resolution electron spectroscopy and molecular structures of Cu–(2,2′-bipyridine) and Cu-(4,4′-bipyridine). CAN J CHEM 2013. [DOI: 10.1139/cjc-2012-0543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Copper complexes of 2,2′-bipyridine (22BIPY) and 4,4′-bipyridine (44BIPY) were prepared in a laser-vaporization supersonic molecular beam source and identified by laser photoionization time-of-flight mass spectrometry. Electronic spectra and molecular structures were studied with pulsed-field ionization zero electron kinetic energy (ZEKE) electron spectroscopy, density functional theory (DFT) and second-order Møller–Plesset perturbation (MP2) calculations, and spectral simulations. Adiabatic ionization energies and metal–ligand and ligand-based vibrational frequencies of Cu–22BIPY and Cu–44BIPY were measured from the ZEKE spectra. Ground electronic states and molecular structures of the two complexes were determined by comparing the spectroscopic measurements with the theoretical calculations. The ground state of Cu–22BIPY ( 2 B1, C2v) has a planar bidentate structure with Cu binding to two nitrogen atoms and two pyridine molecules in the cis configuration. The ground state of Cu–44BIPY ( 2 A, C2) has a monodentate structure with Cu binding to one nitrogen and two pyridines in a twisted configuration. The ionization energy of Cu–22BIPY is considerably lower and its bond energy is much higher than that of Cu–44BIPY. The different ionization and dissociation energies are attributed to the distinct metal binding modes of the two complexes. It has been found that the DFT calculations yield the correct structures for the Cu–22BIPY complex, whereas the MP2 calculations produce the best structures for the Cu–44BIPY complex.
Collapse
Affiliation(s)
- Xu Wang
- Department of Chemistry, University of Kentucky, Lexington, KY 40506-0055, USA
| | - Jung Sup Lee
- Department of Chemistry, University of Kentucky, Lexington, KY 40506-0055, USA
| | - Dong-Sheng Yang
- Department of Chemistry, University of Kentucky, Lexington, KY 40506-0055, USA
| |
Collapse
|
11
|
Xu S, Dai YC, Qiu QM, Jin QH, Zhang CL. catena-Poly[[[diaqua-(1,10-phenanthroline-κ(2)N,N')zinc]-μ-4,4'-bipyridine-κ(2)N:N'] dinitrate 4,4'-bipyridine hemisolvate monohydrate]. Acta Crystallogr Sect E Struct Rep Online 2012; 68:m1222-3. [PMID: 22969502 PMCID: PMC3435629 DOI: 10.1107/s1600536812036318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Accepted: 08/20/2012] [Indexed: 11/10/2022]
Abstract
In the title compound, [Zn(C(10)H(8)N(2))(C(12)H(8)N(2))(H(2)O)(2)](NO(3))(2)·0.5C(10)H(8)N(2)·H(2)O, the Zn(II) atom is coordinated in a distorted octa-hedral geometry by two N atoms from two 4,4'-bipyridine (4,4'-bipy) ligands, two N atoms from a chelating 1,10-phenanthroline ligand and two O atoms from two mutually cis water mol-ecules. The 4,4'-bipy ligands bridge the Zn(II) atoms into a chain structure along [100]. The uncoordinated 4,4'-bipy mol-ecule lies on an inversion center. O-H⋯O and O-H⋯N hydrogen bonds connect the cationic chains, the nitrate anions, the uncoordinated 4,4'-bipy mol-ecules and the water mol-ecules into tow-dimensional networks.
Collapse
Affiliation(s)
- Shan Xu
- Department of Chemistry, Capital Normal University, Beijing 100048, People’s Republic of China
| | - Yong-Cheng Dai
- Department of Chemistry, Capital Normal University, Beijing 100048, People’s Republic of China
| | - Qi-Ming Qiu
- Department of Chemistry, Capital Normal University, Beijing 100048, People’s Republic of China
| | - Qiong-Hua Jin
- Department of Chemistry, Capital Normal University, Beijing 100048, People’s Republic of China
| | - Cun-Lin Zhang
- Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Capital Normal University, Beijing 100048, People’s Republic of China
| |
Collapse
|
12
|
Androš L, Planinić P, Jurić M. The supramolecular architecture in 4,4′-bipyridinium bis(hydrogen oxalate). Acta Crystallogr C 2011; 67:o337-40. [DOI: 10.1107/s0108270111028162] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Accepted: 07/13/2011] [Indexed: 11/10/2022] Open
|
13
|
Mukherjee A, Desiraju GR. Synthon polymorphism and pseudopolymorphism in co-crystals. The 4,4'-bipyridine-4-hydroxybenzoic acid structural landscape. Chem Commun (Camb) 2011; 47:4090-2. [PMID: 21365118 DOI: 10.1039/c0cc05857b] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Co-crystals of 4,4'-bipyridine and 4-hydroxybenzoic acid (1 : 2) show synthon polymorphism with the former being more stable. A 2 : 1 co-crystal is pseudopolymorphic within the same structural landscape with the structural roles of the two bipyridine N-atoms being distinct, as evidenced by mimicry by 4-phenylpyridine.
Collapse
Affiliation(s)
- Arijit Mukherjee
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, India
| | | |
Collapse
|
14
|
Clarke S, Friščić T, Mandal A, Sun C, Parker J. Monolayer structures of 4,4′ bipyridine on graphite at sub-monolayer coverage. Mol Phys 2011. [DOI: 10.1080/00268976.2010.531296] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
15
|
Charge Transport in Single Molecular Junctions at the Solid/Liquid Interface. Top Curr Chem (Cham) 2011; 313:121-88. [DOI: 10.1007/128_2011_238] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
16
|
Clarke SM, Friščić T, Jones W, Mandal A, Sun C, Parker JE. Observation of a two-dimensional halogen-bonded cocrystal at sub-monolayer coverage using synchrotron X-ray diffraction. Chem Commun (Camb) 2010; 47:2526-8. [PMID: 21180747 DOI: 10.1039/c0cc04400h] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The formation of two-dimensional halogen-bonded layers of 4,4'-bipyridyl and 1,4-diiodotetrafluorobenzene was observed on a graphite surface at sub-monolayer coverage using synchrotron X-ray diffraction; the use of the diffraction technique enabled, for the first time, the measurement of I···N halogen bonding distances in a two-dimensional cocrystal and the identification of the halogen bonding interaction in the monolayer.
Collapse
|
17
|
Gutov AV, Rusanov EB, Ryabitskii AB, Chernega AN. Octafluoro-4,4′-bipyridine and its derivatives: Synthesis, molecular and crystal structure. J Fluor Chem 2010. [DOI: 10.1016/j.jfluchem.2009.11.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
18
|
Ibragimov B, Weber E, Peukert M, Fischer C, Seichter W. 2,2'-Dimethyl-4,4'-bipyridine. Acta Crystallogr Sect E Struct Rep Online 2008; 64:o1287. [PMID: 21202918 PMCID: PMC2961716 DOI: 10.1107/s1600536808017807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2008] [Accepted: 06/12/2008] [Indexed: 03/23/2024]
Abstract
In the crystal structure of the title compound, C(12)H(12)N(2), the mol-ecule is twisted around the central C-C bond, with a dihedral angle of 8.32 (5)° between the mean planes of the pyridyl rings. The crystal structure is stabilized by arene stacking inter-actions, with a distance of 3.81 (1) Å between the ring centroids.
Collapse
Affiliation(s)
- Bahtier Ibragimov
- Institute of Bioorganic Chemistry, Academy of Sciences of Uzbekistan, H. Abdullaev 83, Tashkent 100125, Uzbekistan
| | - Edwin Weber
- Institut für Organische Chemie, TU Bergakademie Freiberg, Leipziger Strasse 29, D-09596 Freiberg/Sachsen, Germany
| | - Max Peukert
- Institut für Organische Chemie, TU Bergakademie Freiberg, Leipziger Strasse 29, D-09596 Freiberg/Sachsen, Germany
| | - Conrad Fischer
- Institut für Organische Chemie, TU Bergakademie Freiberg, Leipziger Strasse 29, D-09596 Freiberg/Sachsen, Germany
| | - Wilhelm Seichter
- Institut für Organische Chemie, TU Bergakademie Freiberg, Leipziger Strasse 29, D-09596 Freiberg/Sachsen, Germany
| |
Collapse
|
19
|
Beves JE, Bray DJ, Clegg JK, Constable EC, Housecroft CE, Jolliffe KA, Kepert CJ, Lindoy LF, Neuburger M, Price DJ, Schaffner S, Schaper F. Expanding the 4,4′-bipyridine ligand: Structural variation in {M(pytpy)2}2+ complexes (pytpy=4′-(4-pyridyl)-2,2′:6′,2″-terpyridine, M=Fe, Ni, Ru) and assembly of the hydrogen-bonded, one-dimensional polymer. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2007.10.040] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
20
|
|
21
|
Beves JE, Constable EC, Housecroft CE, Neuburger M, Schaffner S. A one-dimensional copper(ii) coordination polymer containing [Fe(pytpy)2]2+(pytpy = 4′-(4-pyridyl)-2,2′:6′,2″-terpyridine) as an expanded 4,4′-bipyridineligand: a hydrogen-bonded network penetrated by rod-like polymers. CrystEngComm 2008. [DOI: 10.1039/b713001e] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
22
|
Jaska CA, Piers WE, McDonald R, Parvez M. Synthesis, Characterization, and Fluorescence Behavior of Twisted and Planar B2N2-Quaterphenyl Analogues. J Org Chem 2007; 72:5234-43. [PMID: 17564463 DOI: 10.1021/jo0706574] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of planar and twisted heteroaromatic quaterphenyl analogues containing BN ring linkages has been synthesized using primarily difunctional Lewis acidic diborabiphenyl moieties as molecular cores. Crystal structure analyses indicated the presence of large twist angles between adjacent aromatic rings in 1 and 3, which were also observed to possess nonfluorescent behavior due to a lack of molecular rigidity and insufficient B=N character in the excited state. In contrast, the incorporation of one or two bridging ethylene groups between the adjacent rings (installed via an ethynyl cycloisomerization) was found to afford planar phenanthrene or pyrene moieties, which resulted in weak fluorescence behavior (Phi F = 0.02-0.16) for the n-Bu and Ph derivatives 5-12. Emission colors ranged from green (lambda em = 521 nm) to red (lambda em = 630 nm) and depended primarily on the conformation (2,2'- vs 4,4'-), the extent of chromophore conjugation (phenanthrene vs pyrene), and the type of exocyclic substituent present (n-Bu vs Ph). Communication between the two phenanthrene or pyrene moieties was observed in some cases, which was characterized by bathochromically shifted emission bands relative to that of monomeric phenanthrene or pyrene species. Unique excited-state dimer (excimer) fluorescence was observed for the 2,2'-isomer 8, which was characterized by broad, low-energy emission bands bathochromically shifted from that of the corresponding monomer.
Collapse
Affiliation(s)
- Cory A Jaska
- Department of Chemistry, University of Calgary, 2500 University Drive N.W., Calgary, Alberta, Canada
| | | | | | | |
Collapse
|
23
|
Pedireddi V, SeethaLekshmi N. Boronic acids in the design and synthesis of supramolecular assemblies. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.01.005] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
24
|
|
25
|
Mayer D, Dretschkow T, Ataka K, Wandlowski T. Structural transitions in 4,4′-bipyridine adlayers on Au(111)—an electrochemical and in-situ STM-study. J Electroanal Chem (Lausanne) 2002. [DOI: 10.1016/s0022-0728(01)00754-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|