1
|
|
2
|
Zhang M, Yang T, Wang Z, Ma XF, Zhang Y, Greer SM, Stoian SA, Ouyang ZW, Nojiri H, Kurmoo M, Zeng MH. Chemical reaction within a compact non-porous crystal containing molecular clusters without the loss of crystallinity. Chem Sci 2017; 8:5356-5361. [PMID: 28970914 PMCID: PMC5609145 DOI: 10.1039/c7sc01041a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 06/16/2017] [Indexed: 11/23/2022] Open
Abstract
A yellow crystal with {FeII4O4} cubes is modified to a black crystal with {FeIII4O4} cubes via a SC–SC transformation.
The very rare occurrence of a gas–solid chemical reaction has been found to take place on a molecule within a compact non-porous crystal without destroying its long-range structural order and retaining similar crystal structures when yellow crystals of FeII4(mbm)4Cl4(MeOH)4 were exposed to air to give black [FeIII4(mbm)4Cl4(OH)4]·2H2O. The latter cannot be synthesised directly. The original cluster underwent an exchange of methanol to hydroxide, an oxidation of Fe(ii) to Fe(iii), a change in stereochemistry and hydration while the packing and space-group remained unaltered.
Collapse
Affiliation(s)
- Ming Zhang
- Department of Chemistry and Pharmaceutical Sciences , Guangxi Normal University , Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , Guilin , 541004 , P. R. China
| | - Tao Yang
- College of Chemistry and Chemical Engineering , Hubei University , Wuhan , 430062 , P. R. China . .,Department of Chemistry and Pharmaceutical Sciences , Guangxi Normal University , Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , Guilin , 541004 , P. R. China
| | - Zhenxing Wang
- Wuhan National High Magnetic Field Center & School of Physics , Huazhong University of Science and Technology , Wuhan , 430074 , P. R. China
| | - Xiong-Feng Ma
- Department of Chemistry and Pharmaceutical Sciences , Guangxi Normal University , Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , Guilin , 541004 , P. R. China
| | - Yuexing Zhang
- College of Chemistry and Chemical Engineering , Hubei University , Wuhan , 430062 , P. R. China .
| | - Samuel M Greer
- Department of Chemistry and Biochemistry , Florida State University , Tallahassee , Florida 32306 , USA.,National High Magnetic Field Laboratory , Florida State University , Tallahassee , Florida 32310 , USA
| | - Sebastian A Stoian
- Department of Chemistry and Biochemistry , Florida State University , Tallahassee , Florida 32306 , USA.,National High Magnetic Field Laboratory , Florida State University , Tallahassee , Florida 32310 , USA
| | - Zhong-Wen Ouyang
- Wuhan National High Magnetic Field Center & School of Physics , Huazhong University of Science and Technology , Wuhan , 430074 , P. R. China
| | - Hiroyuki Nojiri
- Institute for Materials Research , Tohoku University , Katahira 2-1-1 , Sendai 980-8577 , Japan
| | - Mohamedally Kurmoo
- Institut de Chimie de Strasbourg , CNRS-UMR 7177 , Université de Strasbourg , 4 rue Blaise Pascal , 67070 Strasbourg , France .
| | - Ming-Hua Zeng
- College of Chemistry and Chemical Engineering , Hubei University , Wuhan , 430062 , P. R. China . .,Department of Chemistry and Pharmaceutical Sciences , Guangxi Normal University , Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources , Guilin , 541004 , P. R. China
| |
Collapse
|
3
|
Yang T, Kurmoo M, Zeng MH. Recent Advances of Single-Crystal to Single-Crystal Transformation for Discrete Coordination Compounds. J Indian Inst Sci 2017. [DOI: 10.1007/s41745-017-0029-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
4
|
Metal-metal bonding and aromaticity in [M2(NHCHNH)3]2 (μ-E)2 (E = O, S; M = Nb, Mo, Tc, Ru, Rh). J Mol Model 2016; 22:48. [PMID: 26825973 DOI: 10.1007/s00894-016-2912-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 01/07/2016] [Indexed: 10/22/2022]
Abstract
The nature of M-M bonding and aromaticity of [M2(NHCHNH)3]2(μ-E)2 (E = O, S; M = Nb, Mo, Tc, Ru, Rh) was investigated using atoms in molecules (AIM) theory, electron localization function (ELF), natural bond orbital (NBO) and molecular orbital analysis. These analyses led to the following main conclusions: in [M2(NHCHNH)3]2(μ-E)2 (E = O, S; M = Nb, Mo, Tc, Ru, Rh), the Nb-Nb, Ru-Ru, and Rh-Rh bonds belong to "metallic" bonds, whereas Mo-Mo and Tc-Tc drifted toward the "dative" side; all these bonds are partially covalent in character. The Nb-Nb, Mo-Mo, and Tc-Tc bonds are stronger than Ru-Ru and Rh-Rh bonds. The M-M bonds in [M2(NHCHNH)3]2(μ-S)2 are stronger than those in [M2(NHCHNH)3]2(μ-O)2 for M = Nb, Mo, Tc, and Ru. The NICS(1)ZZ values show that all of the studied molecules, except [Ru2(NHCHNH)3]2(μ-O)2, are aromaticity molecules. O-bridged compounds have more aromaticity than S-bridged compounds. Graphical Abstract Left Molecular graph, and right electron localization function (ELF) isosurface of [M2(NHCHNH)3]2(μ-E)2(E = O, S; M = Nb, Mo, Tc, Ru, Rh).
Collapse
|
5
|
Ventura K, Veleta JM, Metta-Magaña A, Villagrán D. Stabilization of a W26+ bimetallic complex supported by two N,N′,N″-triphenylguanidinate ligands. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2014.09.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
6
|
Meyer G. All the lanthanides do it and even uranium does oxidation state +2. Angew Chem Int Ed Engl 2014; 53:3550-1. [PMID: 24616202 DOI: 10.1002/anie.201311325] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Gerd Meyer
- Department für Chemie, Universität zu Köln, Greinstrasse 6, 50939 Köln (Germany) http://www.gerdmeyer.de; Department of Chemistry, Iowa State University, Ames, IA 50011 (USA). ,
| |
Collapse
|
7
|
|
8
|
Chiarella GM, Cotton FA, Murillo CA, Zhao Q. A Strong Metal-to-Metal Interaction in an Edge-Sharing Bioctahedral Compound that Leads to a Very Short Tungsten–Tungsten Double Bond. Inorg Chem 2014; 53:2288-95. [DOI: 10.1021/ic402992n] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Gina M. Chiarella
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | | | - Carlos A. Murillo
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | - Qinliang Zhao
- Department
of Chemistry, University of the Pacific, 3601 Pacific Avenue, Stockton, California 95211, United States
| |
Collapse
|
9
|
Tan ZF, Liu CY, Li Z, Meng M, Weng NS. Abnormally long-range diamagnetic anisotropy induced by cyclic d(δ)-p(π) π conjugation within a six-membered dimolybdenum/chalcogen ring. Inorg Chem 2012; 51:2212-21. [PMID: 22296335 DOI: 10.1021/ic2021947] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Incorporating two quadruply bonded dimolybdenum units [Mo(2)(DAniF)((3))](+) (ancillary ligand DAniF = N,N'-di-p-anisylformamidinate) with two hydroselenides (SeH(-)) gave rise to [Mo(2)(DAniF)(3)](2)(μ-SeH)(2) (1). With the molecular scaffold remaining unchanged, aerobic oxidation of 1, followed by autodeprotonation, generated [Mo(2)(DAniF)(3)](2)(μ-Se)(2) (2). The two complexes share a common cyclic six-membered Mo(2)/Se core, but compound 2 is distinct from 1 by having structural, electronic, and magnetic properties that correspond with aromaticity. Importantly, the aromatic behaviors for this non-carbon system are ascribable to the bonding analogy between the δ component in a Mo-Mo quadruple bond and the π component in a C-C double bond. Cyclic π delocalization via d(δ)-p(π) conjugation within the central unit, which involves six π electrons with one electron from each of the Mo(2) units and two electrons from each of the bridging atoms, has been confirmed in a previous work on the oxygen- and sulfur-bridged analogues (Fang, W.; et al. Chem.-Eur. J.2011, 17, 10288). Of the three members in this family, compound 2 exhibits an enhanced aromaticity because of the selenium bridges. The remote in-plane and out-of-plane methine (ArNCHNAr) protons resonate at chemical shifts (δ) 9.42 and 7.84 ppm, respectively. This NMR displacement, Δδ = 1.58 ppm, is larger than that for the oxygen-bridged (1.30 ppm) and sulfur-bridged (1.49 ppm) derivatives. The abnormally long-range shielding effects and the large diamagnetic anisotropy for this complex system can be rationalized by the induced ring currents circulating the Mo(2)/chalcogen core. By employment of the McConnell equation {Δσ = Δχ[(l - 3 cos 2θ)/3R(3)N]}, the magnetic anisotropy (Δχ = χ(⊥) - χ(||)) is estimated to be -414 ppm cgs, which is dramatically larger than -62.9 ppm cgs for benzene, the paradigm of aromaticity. In addition, it is found that the magnitude of Δχ is linearly related to the radius of the bridging atoms, with the selenium analogue having the largest value. This aromaticity sequence is in agreement with that for the chalcogen-containing aromatic family, e.g., furan < thiophene < selenophene.
Collapse
Affiliation(s)
- Zhong Fei Tan
- Department of Chemistry, Tongji University, Shanghai 200092, People's Republic of China
| | | | | | | | | |
Collapse
|
10
|
Hicks J, Ring SP, Patmore NJ. Tuning the electronic structure of Mo–Mo quadruple bonds by N for O for S substitution. Dalton Trans 2012; 41:6641-50. [DOI: 10.1039/c2dt30234a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
11
|
Reger DL, Horger JJ, Debreczeni A, Smith MD. Syntheses and Characterization of Copper(II) Carboxylate Dimers Formed from Enantiopure Ligands Containing a Strong π···π Stacking Synthon: Enantioselective Single-Crystal to Single-Crystal Gas/Solid-Mediated Transformations. Inorg Chem 2011; 50:10225-40. [DOI: 10.1021/ic201238n] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daniel L Reger
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA.
| | | | | | | |
Collapse
|
12
|
Fang W, He Q, Tan ZF, Liu CY, Lu X, Murillo CA. Experimental and theoretical evidence of aromatic behavior in heterobenzene-like molecules with metal-metal multiple bonds. Chemistry 2011; 17:10288-96. [PMID: 21818792 DOI: 10.1002/chem.201003693] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Indexed: 11/11/2022]
Abstract
Binding two quadruply bonded dimolybdenum units [Mo(2)(DAniF)(3)](+) (DAniF=N,N'-di-p-anisylformamidinate) with two chalcogen atoms generated two molecules with a central core composed of a cyclic six-membered [Mo(2)](2)(μ-EH)(2) species (E=S in 1 and O in 3, and [Mo(2)] is a quadruple-bonded [Mo(2)(formamidinate)(3)] unit). Aerobic oxidation of 1 and 3 followed by concomitant deprotonation gave rise to the corresponding [Mo(2)](2)(μ-E)(2) compounds 2 and 4. The latter show a striking coplanarity and near-bond equalization of the Mo/E cluster. The oxidized species 2 and 4 are diamagnetic in the measured temperature range of 5 to 300 K, which is somewhat unexpected for molecules that have dimetal units with a σ(2)π(4)δ(1) electronic configuration. This suggests there are strong interactions between the dimolybdenum units through the E atoms. The large electronic delocalization of the δ electrons over the entire Mo/E core is supported by the exceptionally large potential separation for the two successive one-electron reductions of the linked Mo(2)(5+) units from the oxidized species (ΔE(½)=1.7 V for the sulfur analogue). This large electronic delocalization has an important effect on the NMR spectroscopic signals for the two sets of methine (N-(CH)-N) protons from the DAniF ligands. Those essentially parallel to the core, H(∥), and those essentially perpendicular to the core, H(⊥), exhibit downfield and upfield chemical shifts, respectively, that are separated by δ=1.32 ppm. The structural, electronic, magnetic, and chemical behaviors for 2 and 4 are consistent with aromaticity, with the [Mo(2)E(2)Mo(2)] cores that resemble the prototypical benzene molecule. Theoretical studies, including DFT calculations, natural bond orbital (NBO) analyses, and gauge-independent atomic orbital (GIAO) NMR spectroscopic calculations, are also consistent with the aromaticity of the [Mo(2)](2)(μ-E)(2) units being promoted by d(δ)(Mo(2))-p(π)(E) π conjugation. The cyclic π conjugation of the central moiety in 2 and 4 involves a total of six electrons with 2e from δ(Mo(2)) and 4e from p(π)(E) orbitals, thereby conforming to Hückel's rule when electrons in the MOs with δ character are considered part of the delocalized system.
Collapse
Affiliation(s)
- Wenjuan Fang
- Department of Chemistry, Tongji University, Shanghai, 200092, P.R. China
| | | | | | | | | | | |
Collapse
|
13
|
Uehara K, Mizuno N. Heterolytic Dissociation of Water Demonstrated by Crystal-to-Crystal Core Interconversion from (μ-Oxo)divanadium to Bis(μ-hydroxo)divanadium Substituted Polyoxometalates. J Am Chem Soc 2011; 133:1622-5. [DOI: 10.1021/ja108245g] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kazuhiro Uehara
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan, and Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Noritaka Mizuno
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan, and Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| |
Collapse
|
14
|
Huang Z, White PS, Brookhart M. Ligand exchanges and selective catalytic hydrogenation in molecular single crystals. Nature 2010; 465:598-601. [DOI: 10.1038/nature09085] [Citation(s) in RCA: 143] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2010] [Accepted: 04/15/2010] [Indexed: 11/09/2022]
|
15
|
Meyer G. Heteroleptic Samarium(II) Complexes by Base-Induced Reduction. Angew Chem Int Ed Engl 2010; 49:3116-8. [DOI: 10.1002/anie.201000566] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
16
|
Meyer G. Heteroleptische Samarium(II)-Komplexe durch Basen-induzierte Reduktion. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201000566] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|