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Honacker C, Kappelt B, Jabłoński M, Hepp A, Layh M, Rogel F, Uhl W. Aluminium Functionalized Germanes: Intramolecular Activation of Ge–H Bonds, Formation of a Dihydrogen Bond and Facile Hydrogermylation of Unsaturated Substrates. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900543] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Christian Honacker
- Institut für Anorganische und Analytische Chemie Universität Münster Corrensstraße 30 48149 Münster Germany
| | - Benedikt Kappelt
- Institut für Anorganische und Analytische Chemie Universität Münster Corrensstraße 30 48149 Münster Germany
| | - Mirosław Jabłoński
- Department of Quantum Chemistry Faculty of Chemistry Nicolaus Copernicus University in Toruń 7, Gagarina St. 87‐100 Toruń Poland
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie Universität Münster Corrensstraße 30 48149 Münster Germany
| | - Marcus Layh
- Institut für Anorganische und Analytische Chemie Universität Münster Corrensstraße 30 48149 Münster Germany
| | - Friedhelm Rogel
- Institut für Anorganische und Analytische Chemie Universität Münster Corrensstraße 30 48149 Münster Germany
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie Universität Münster Corrensstraße 30 48149 Münster Germany
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2
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Belkova NV, Epstein LM, Filippov OA, Shubina ES. Hydrogen and Dihydrogen Bonds in the Reactions of Metal Hydrides. Chem Rev 2016; 116:8545-87. [PMID: 27285818 DOI: 10.1021/acs.chemrev.6b00091] [Citation(s) in RCA: 148] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The dihydrogen bond-an interaction between a transition-metal or main-group hydride (M-H) and a protic hydrogen moiety (H-X)-is arguably the most intriguing type of hydrogen bond. It was discovered in the mid-1990s and has been intensively explored since then. Herein, we collate up-to-date experimental and computational studies of the structural, energetic, and spectroscopic parameters and natures of dihydrogen-bonded complexes of the form M-H···H-X, as such species are now known for a wide variety of hydrido compounds. Being a weak interaction, dihydrogen bonding entails the lengthening of the participating bonds as well as their polarization (repolarization) as a result of electron density redistribution. Thus, the formation of a dihydrogen bond allows for the activation of both the MH and XH bonds in one step, facilitating proton transfer and preparing these bonds for further transformations. The implications of dihydrogen bonding in different stoichiometric and catalytic reactions, such as hydrogen exchange, alcoholysis and aminolysis, hydrogen evolution, hydrogenation, and dehydrogenation, are discussed.
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Affiliation(s)
- Natalia V Belkova
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , Vavilov Street 28, 119991 Moscow, Russia
| | - Lina M Epstein
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , Vavilov Street 28, 119991 Moscow, Russia
| | - Oleg A Filippov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , Vavilov Street 28, 119991 Moscow, Russia
| | - Elena S Shubina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , Vavilov Street 28, 119991 Moscow, Russia
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3
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Synthesis, characterization and crystal structure of 6-Chloro-4,4′-dimethyl-2,2′-bipyridine and 4,4′-Dimethyl 2,2′-bipyridine N-Oxide. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.11.054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Baratta W, Baldino S, Calhorda MJ, Costa PJ, Esposito G, Herdtweck E, Magnolia S, Mealli C, Messaoudi A, Mason SA, Veiros LF. CNN Pincer Ruthenium Catalysts for Hydrogenation and Transfer Hydrogenation of Ketones: Experimental and Computational Studies. Chemistry 2014; 20:13603-17. [DOI: 10.1002/chem.201402229] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Walter Baratta
- Dipartimento di Chimica, Fisica e Ambiente, Università di Udine, Via Cotonificio 108, 33100 Udine (Italy), Fax: (+39) 0432‐558803
| | - Salvatore Baldino
- Dipartimento di Chimica, Fisica e Ambiente, Università di Udine, Via Cotonificio 108, 33100 Udine (Italy), Fax: (+39) 0432‐558803
| | - Maria José Calhorda
- Departamento de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749‐016 Lisboa (Portugal)
| | - Paulo J. Costa
- Departamento de Química, QOPNA and Secção Autónoma de Ciências da Saúde Universidade de Aveiro, 3810‐193 Aveiro (Portugal)
| | - Gennaro Esposito
- Dipartimento di Scienze Mediche e Biologiche, Università di Udine, P.le Kolbe 4, I‐33100 Udine (Italy)
- Current Address: Science & Math Division, New York University Abu Dhabi, Abu Dhabi (UAE)
| | - Eberhardt Herdtweck
- Anorganisch‐chemisches Institut, Technische Universität München, Lichtenbergstrasse 4, D‐85747 Garching (Germany)
| | - Santo Magnolia
- Dipartimento di Chimica, Fisica e Ambiente, Università di Udine, Via Cotonificio 108, 33100 Udine (Italy), Fax: (+39) 0432‐558803
| | - Carlo Mealli
- Istituto di Chimica dei Composti, Organometallici (ICCOM‐CNR), Via Madonna del Piano, I‐50019 Sesto Fiorentino (Italy)
| | - Abdelatif Messaoudi
- Istituto di Chimica dei Composti, Organometallici (ICCOM‐CNR), Via Madonna del Piano, I‐50019 Sesto Fiorentino (Italy)
| | - Sax A. Mason
- Institut Max von Laue ‐ Paul Langevin, 6, Rue Jules Horowitz, BP 156, 38042, Grenoble Cedex 9 (France)
| | - Luis F. Veiros
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049‐001 Lisboa (Portugal)
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5
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Synthesis, NMR characterization, X-ray structural analysis and theoretical calculations of amide and ester derivatives of the coumarin scaffold. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.03.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Oliveira BGD. Structure, energy, vibrational spectrum, and Bader's analysis of π⋯H hydrogen bonds and H−δ⋯H+δdihydrogen bonds. Phys Chem Chem Phys 2013; 15:37-79. [DOI: 10.1039/c2cp41749a] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Abstract
This chapter comments on the motivations and the methods of crystallographic studies at low temperature. Cry-crystallography is a brunch of Crystallography, a science that is too often confused with a technique. On the other hand, the scientific background to study crystal phases at low temperature is here provided, together with a survey of many possible techniques that provide complementary or supplementary information. Several applications are discussed, in particular in relation with highly accurate studies like electron density determination or phase transition mechanisms.
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Affiliation(s)
- Piero Macchi
- Department of Chemistry and Biochemistry, University of Bern, Freistrasse 3, CH-3012, Bern, Switzerland.
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8
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Fu Y, Romero MJ, Habtemariam A, Snowden ME, Song L, Clarkson GJ, Qamar B, Pizarro AM, Unwin PR, Sadler PJ. The contrasting chemical reactivity of potent isoelectronic iminopyridine and azopyridine osmium(ii) arene anticancer complexes. Chem Sci 2012. [DOI: 10.1039/c2sc20220d] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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9
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Oliveira BG, Araújo RCMU, Ramos MN. The (H-δ···H+δ) charge transfer and the evaluation of the harmonic molecular properties of dihydrogen-bonded complexes formed by BeH2···HX with X = F, Cl, CN, and CCH. Struct Chem 2008. [DOI: 10.1007/s11224-007-9269-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Cho HG, Andrews L. Methylidyne Complexes Prepared by Reactions of Laser-Ablated Os Atoms with Methane, Methyl Halides, and Ethane: Observation of the C—H and Os—H Stretching Absorptions. Organometallics 2008. [DOI: 10.1021/om701041u] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Han-Gook Cho
- Department of Chemistry, University of Incheon, 177 Dohwa-dong, Nam-ku, Incheon, 402-749, South Korea, and Department of Chemistry, University of Virginia, P.O. Box 400319, Charlottesville, Virginia 22904-4319
| | - Lester Andrews
- Department of Chemistry, University of Incheon, 177 Dohwa-dong, Nam-ku, Incheon, 402-749, South Korea, and Department of Chemistry, University of Virginia, P.O. Box 400319, Charlottesville, Virginia 22904-4319
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Lorenzini F, Marcazzan P, Patrick BO, James BR. Synthesis, characterization, and X-ray structures of three iridium(III)-hydrido-cyclometallated-imine complexes, including the first reported hydrido-(η1-imine)-Ir complex. CAN J CHEM 2008. [DOI: 10.1139/v07-153] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Reactions of cis,trans,cis-[Ir(H)2(PPh3)2(solv)2]PF6 (solv = MeOH or Me2CO) with the imines HN=CPh2, (o-HOC6H4)C(Me)=NCH2Ph, and PhC(H)=N(p-F-C6H4) in MeOH or acetone under Ar give the complexes [IrH{NH=C(Ph)(o-C6H4)}(NH=CPh2)(PPh3)2]PF6 (3), [IrH{PhCH2N=C(Me)(o-C6H3OH)}(solv)(PPh3)2]PF6, where solv = MeOH (4) or Me2CO (4a), and [IrH{N(p-F-C6H4)=CH(o-C6H4)}(Me2CO)(PPh3)2]PF6 (5a), which have been isolated and characterized. The imine (C6F5)C(H)=NPh is unreactive toward the Ir precursors. The X-ray structures of 3, 4·2MeOH, and 5a·1/2Me2CO show an η2-N,C-imine moiety coordinated via the N atom and an orthometallated-C atom. Complex 3, which contains both an orthometallated imine and an η1-imine, is the first structurally characterized hydrido-(η1-imine)-Ir complex. Comparisons are made with data for the corresponding Rh systems.Key words: iridium, hydride complexes, imines, fluoroimines, phosphine complexes, orthometallation, crystallography, NMR spectroscopy.
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Garino C, Gobetto R, Nervi C, Salassa L, Rosenberg E, Ross JBA, Chu X, Hardcastle KI, Sabatini C. Spectroscopic and computational studies of a Ru(II) terpyridine complex: the importance of weak intermolecular forces to photophysical properties. Inorg Chem 2007; 46:8752-62. [PMID: 17845034 DOI: 10.1021/ic7010343] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The complex [Ru(tpy)(CO)(2)TFA]+[PF(6)]- (where tpy = 2,2':6',2' '-terpyridine and TFA = CF(3)CO(2)-) (1) has been synthesized and fully characterized spectroscopically. The X-ray structure of the complex has been determined. The photopysical properties of the ruthenium complex and the free ligand tpy have been investigated at room temperature and at 77 K in acetonitrile solution and in the solid state. Their electronic spectra are highly influenced by intermolecular stacking interactions, both in solution and in the solid state. Density functional theory (DFT) and time-dependent DFT (TDDFT) calculations have been performed to characterize the electronic structure and the excited states of [Ru(tpy)(CO)(2)TFA]+[PF(6)]- and tpy. TDDFT calculations on three different conformations of free ligand have been performed as well. Absorption and emission spectra of tpy have been studied at different temperatures and concentrations in order to have a better understanding of this ruthenium derivative's properties. The absorption spectrum of 1 is characterized by metal-perturbed ligand-centered (LC) bands in the UV region. No metal-to-ligand charge transfer (MLCT) bands are observed in the visible for the complex. Only at high concentrations (10(-4) M) does a very weak band appear at 470 nm. At 77 K and low concentrations, solutions of 1 exhibit a major 3LC emission band centered at 468 nm (21.4 x 10(-3) cm(-1)). When the concentration of the complex is increased, an unstructured narrow emission at 603 nm (16.6 x 10(-3) cm(-1)), with a lifetime of 10 micros, dominates the emission spectrum in glassy acetonitrile. This emission originates from a pi-pi stacked dimeric (or oligomeric) species. TDDFT calculations performed on a tail-to-tail dimer structure, similar to that seen in the solid state, ascribe the transition to a triplet excited state, where intermolecular metal (d) --> ligand (pi*, polypyridine) charge transfer occurs. A good estimate of the transition energy is also obtained (623 nm, 1.94 eV).
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Affiliation(s)
- Claudio Garino
- Dipartimento di Chimica IFM, Università di Torino, Via P. Giuria 7, I-10125 Torino, Italy
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Scaffidi-Domianello YY, Nazarov AA, Haukka M, Galanski MS, Keppler BK, Schneider J, Du P, Eisenberg R, Kukushkin VY. First Example of the Solid-State Thermal Cyclometalation of Ligated Benzophenone Imine Giving Novel Luminescent Platinum(II) Species. Inorg Chem 2007; 46:4469-82. [PMID: 17451237 DOI: 10.1021/ic062414k] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The (benzophenone imine)platinum(II) compounds trans-[PtCl2(Ph2C=NH)(RR'SO)] [R, R'=Me, Me (2); n-Pr, n-Pr (3); (CH2)4 (4); Me, Ph (5); Me, p-MeC6H4 (6)] were prepared by the reaction of Ph2C=NH with K[PtCl3(RR'SO)], obtained in situ from K2[PtCl4] and the corresponding sulfoxide, giving 2-6 as well as cis-[PtCl2(Ph2C=NH)2] (1) as a minor product. The complexes were characterized by 1H, 13C, and 195Pt NMR and IR spectroscopy, electrospray ionization mass spectrometry, and C, H, and N elemental analysis. The X-ray crystallography of 1 enables confirmation of the cis configuration of the complex, while in 2 and 4.1/2CHCl3, the imine and sulfoxide ligands are mutually trans. The solid-state structure of 4.1/2CHCl3 consists of two dimeric Pt moieties representing a rather weak Pt...Pt interaction. The dimeric architecture of 4.1/2CHCl3 is enhanced by the hydrogen bonding between imine H atoms and O atoms. The orthometalation of 1 and 2-6 proceeds both in the solid phase and in a toluene suspension, leading to the formation of [PtCl{Ph(C6H4)C=NH}(Ph2C=NH)] (7) and [PtCl{Ph(C6H4)C=NH}(RR'SO)] (8-12), respectively, isolated in nearly quantitative yields. Complexes 8-12 are emissive at room temperature both in solution (lambdaemmax approximately 535 nm) and in the solid state (lambdaemmax 560-610 nm), with excited-state lifetimes of ca. 300-600 ns, representing a new family of PtII-based luminescent complexes. Compounds 8 and 10 have been characterized by X-ray analysis, confirming the square-planar coordination geometry of the metal center with the almost planar platinacycles. In 8, the asymmetric unit contains two independent Pt molecules, while in 10, it includes four Pt molecules linked by the intermolecular hydrogen-bonding network between the NH group and Cl atoms.
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Ezhova MB, Patrick BO, James BR. Characterization of a Rhodium(III)−Imine−Orthometalated Imine Complex: Reversible C−H Activation of a Coordinated Imine. Organometallics 2005. [DOI: 10.1021/om050240t] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Maria B. Ezhova
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Brian O. Patrick
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Brian R. James
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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Panigati M, Mercandelli P, D’Alfonso G, Beringhelli T, Sironi A. A dihydrogen bond between a bridging hydride and the NH proton of a coordinated dimethylamine: solid state, solution and theoretical characterization. J Organomet Chem 2005. [DOI: 10.1016/j.jorganchem.2004.12.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Sharma S, Singh SK, Chandra M, Pandey DS. DNA-binding behavior of ruthenium(II) complexes containing both group 15 donors and 2,2′:6′,2″-terpyridine. J Inorg Biochem 2005; 99:458-66. [PMID: 15621278 DOI: 10.1016/j.jinorgbio.2004.10.021] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2004] [Revised: 10/18/2004] [Accepted: 10/19/2004] [Indexed: 11/21/2022]
Abstract
Tetrafluoroborate salts of cationic ruthenium complexes [Ru(kappa(3)-tpy)(EPh(3))(2)Cl](+) (tpy=2,2':6',2''-terpyridine; E=P, 1 or As, 2) containing both the group 15 donor ligands and tpy and their representative substitution products are reported. Weak interaction {C-H...X (X=Cl, F and pi) and pi-pi interaction} studies revealed the presence of a double helical motif in complex 1, while the complex 2 assumes a single helical motif. Intercalative mode of interaction of the complexes 1 and 2 with calf thymus DNA (ctDNA) has been supported by absorption titration studies.
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Affiliation(s)
- Sanjeev Sharma
- Department of Chemistry, Awadhesh Pratap Singh University, Rewa 486 003 (M.P.), India
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Helices of ruthenium complexes involving pyridyl–azine ligands: synthesis, spectral and structural aspects. J Organomet Chem 2004. [DOI: 10.1016/j.jorganchem.2004.08.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Gárate-Morales JL, Fernández-G JM. Reactivity of [(μ-H)2Os3(CO)10] with Aminotributylstannane and Aminotrimethylstannane Derivatives. Organometallics 2004. [DOI: 10.1021/om0400301] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- José Luis Gárate-Morales
- Instituto de Química, UNAM, Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, México D. F., México
| | - Juan M. Fernández-G
- Instituto de Química, UNAM, Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, México D. F., México
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Ru(II) complexes imparting N2O2 donor bis chelating ligand N,N′-bis(salicylidine)-hydrazine in unusual coordination mode. J Organomet Chem 2004. [DOI: 10.1016/j.jorganchem.2004.03.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Gobetto R, Nervi C, Romanin B, Salassa L, Milanesio M, Croce G. X-ray Structures and Complete NMR Assignment by DFT Calculations of [Os(bpy)2(CO)Cl]PF6and [Os(bpy)2(CO)H]PF6Complexes. Organometallics 2003. [DOI: 10.1021/om0303202] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kar T, Scheiner S. Comparison between hydrogen and dihydrogen bonds among H3BNH3, H2BNH2, and NH3. J Chem Phys 2003. [DOI: 10.1063/1.1580093] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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The effect of ligand basicity on the unconventional hydrogen-bond in H(μ-H)Os3(CO)10L (L=amine) derivatives. Inorganica Chim Acta 2002. [DOI: 10.1016/s0020-1693(02)00863-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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