1
|
Verma K, Viswanathan KS. The borazine dimer: the case of a dihydrogen bond competing with a classical hydrogen bond. Phys Chem Chem Phys 2017; 19:19067-19074. [PMID: 28702569 DOI: 10.1039/c7cp04056c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dimers of borazine were studied using matrix isolation infrared spectroscopy and ab initio quantum chemical calculations. Computations were performed at the MP2 and M06-2X levels of theory using the 6-311++G(d,p) and aug-cc-pVDZ basis sets for the various homodimers. At both levels of theory, an aligned stacked structure was found to be the global minimum, which was nearly isoenergetic to a parallel displaced structure. A T-shaped structure, where the N-H of one borazine pointed towards the N of the second borazine, was found to be a local minimum. In addition to these structures, a dihydrogen bonded structure, where the hydrogen attached to the nitrogen of borazine interacted with the hydrogen attached to the boron atom of another borazine, was also indicated. Experimentally, we observed the T-shaped dimer and the dihydrogen bonded dimer. This is one of the rare examples of experimental evidence for a dihydrogen bond, in a system other than in a metal hydride. These results for the borazine dimer were clearly different from the benzene dimer where the parallel displaced structure was found to be the global minimum followed by the T-shaped structure at the MP2/aug-cc-pVDZ level of theory. AIM, EDA and NBO analyses were carried out for all the structures to explore the nature of interactions.
Collapse
Affiliation(s)
- Kanupriya Verma
- Department of Chemical Sciences, Indian Institute of Science Education & Research, Mohali, 140306 Punjab, India.
| | - K S Viswanathan
- Department of Chemical Sciences, Indian Institute of Science Education & Research, Mohali, 140306 Punjab, India.
| |
Collapse
|
2
|
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.
Collapse
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
| |
Collapse
|
3
|
Grabowski SJ. What is Common for Dihydrogen Bond and H…σ Interaction—Theoretical Analysis and Experimental Evidences. CHALLENGES AND ADVANCES IN COMPUTATIONAL CHEMISTRY AND PHYSICS 2015. [DOI: 10.1007/978-3-319-14163-3_7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
4
|
Theoretical studies on the dihydrogen bonding between shortchain hydrocarbon and magnesium hydride. Chem Res Chin Univ 2014. [DOI: 10.1007/s40242-014-4051-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
5
|
Longobardi LE, Russell CA, Green M, Townsend NS, Wang K, Holmes AJ, Duckett SB, McGrady JE, Stephan DW. Hydrogen Activation by an Aromatic Triphosphabenzene. J Am Chem Soc 2014; 136:13453-7. [DOI: 10.1021/ja5077525] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lauren E. Longobardi
- Department
of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Christopher A. Russell
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - Michael Green
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - Nell S. Townsend
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - Kun Wang
- State
Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Arthur J. Holmes
- Department
of Chemistry, University of York, York, YO10 5DD, United Kingdom
| | - Simon B. Duckett
- Department
of Chemistry, University of York, York, YO10 5DD, United Kingdom
| | - John E. McGrady
- Department
of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
| | - Douglas W. Stephan
- Department
of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
- Chemistry
Department, Faculty of Science, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia
| |
Collapse
|
6
|
|
7
|
Nguyen VS, Majumdar D, Leszczynski J, Nguyen MT. Hydrogen release from systems containing phosphine, borane, alane and galane: A mechanistic study. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.08.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
8
|
Time-Dependent Density Functional Theory Study on Hydrogen and Dihydrogen Bonding in Electronically Excited State of 2-Pyridone–Borane–Trimethylamine Cluster. J CLUST SCI 2013. [DOI: 10.1007/s10876-013-0572-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
9
|
Golub IE, Filippov OA, Gutsul EI, Belkova NV, Epstein LM, Rossin A, Peruzzini M, Shubina ES. Dimerization Mechanism of Bis(triphenylphosphine)copper(I) Tetrahydroborate: Proton Transfer via a Dihydrogen Bond. Inorg Chem 2012; 51:6486-97. [DOI: 10.1021/ic202598c] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Igor E. Golub
- A. N. Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences (INEOS RAS), 28 Vavilov Street,
119991 Moscow, Russia
| | - Oleg A. Filippov
- A. N. Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences (INEOS RAS), 28 Vavilov Street,
119991 Moscow, Russia
| | - Evgenii I. Gutsul
- A. N. Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences (INEOS RAS), 28 Vavilov Street,
119991 Moscow, Russia
| | - Natalia V. Belkova
- A. N. Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences (INEOS RAS), 28 Vavilov Street,
119991 Moscow, Russia
| | - Lina M. Epstein
- A. N. Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences (INEOS RAS), 28 Vavilov Street,
119991 Moscow, Russia
| | - Andrea Rossin
- Istituto di Chimica dei Composti Organometallici Consiglio Nazionale delle Ricerche (ICCOM CNR), via Madonna del Piano 10, 50019 Sesto Fiorentino
(Florence), Italy
| | - Maurizio Peruzzini
- Istituto di Chimica dei Composti Organometallici Consiglio Nazionale delle Ricerche (ICCOM CNR), via Madonna del Piano 10, 50019 Sesto Fiorentino
(Florence), Italy
| | - Elena S. Shubina
- A. N. Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences (INEOS RAS), 28 Vavilov Street,
119991 Moscow, Russia
| |
Collapse
|
10
|
Feng L, Bai FQ, Wu Y, Zhang HX. Dihydrogen bond in C2H4−nCln ··· NaH (n = 0, 1, 2, 3) complexes: ab initio, AIM and NBO studies. Mol Phys 2011. [DOI: 10.1080/00268976.2010.546374] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
11
|
Affiliation(s)
- Sławomir Janusz Grabowski
- Kimika Fakultatea, Euskal Herriko Unibertsitatea and Donostia International Physics Center (DIPC) P.K. 1072, 20080 Donostia, Euskadi, Spain
- IKERBASQUE, Basque Foundation for Science, 48011, Bilbao, Spain
| |
Collapse
|
12
|
Liu Y, Yang Y, Jiang K, Shi D, Sun J. Excited-State Hydrogen and Dihydrogen Bonding of a Dihydrogen-Bonded Phenol–Borane–Dimethylamine Complex. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2011. [DOI: 10.1246/bcsj.20100233] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
13
|
Wei NN, Hao C, Xiu Z, Chen J, Qiu J. Time-dependent density functional theory study on excited-state dihydrogen bonding O-H···H-Ge of the dihydrogen-bonded phenol-triethylgermanium complex. J Comput Chem 2010; 31:2853-8. [PMID: 20928848 DOI: 10.1002/jcc.21579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Intermolecular dihydrogen bond O-H···H-Ge in the electronically excited state of the dihydrogen-bonded phenol-triethylgermanium (TEGH) complex was studied theoretically using time-dependent density functional theory. Analysis of the frontier molecular orbitals revealed a locally excited S(1) state in which only the phenol moiety is electronically excited. In the predicted infrared spectrum of the dihydrogen-bonded phenol-TEGH complex, the O-H stretching vibrational mode shifts to a lower frequency in the S(1) state in comparison with that in ground state. The Ge-H stretching vibrational mode demonstrates a relatively smaller redshift than the O-H stretching vibrational mode. Upon electronic excitation to the S(1) state, the O-H and Ge-H bonds involved in the dihydrogen bond both get lengthened, whereas the C-O bond is shortened. With an increased binding energy, the calculated H···H distance significantly decreases in the S(1) state. Thus, the intermolecular dihydrogen bond O-H···H-Ge of the dihydrogen-bonded phenol-TEGH complex becomes stronger in the electronically excited state than that in the ground state.
Collapse
Affiliation(s)
- Ning-Ning Wei
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | | | | | | | | |
Collapse
|
14
|
Gao S, Wu W, Mo Y. The B-H...H-P dihydrogen bonding in ion pair complexes [(CF(3))(3)BH(-)][HPH(3-n)(Me)(n)(+)] (n = 0-3) and its implication in H(2) elimination and activation reactions. J Phys Chem A 2009; 113:8108-17. [PMID: 19555090 DOI: 10.1021/jp903059w] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The B-H(delta-)...(delta+)H-P dihydrogen bonding (DHB) in ion pair complexes [(CF(3))(3)BH(-)][HPH(3-n)(Me)(n)(+)] (n = 0-3) and its role in the combination of proton and hydride with the release of H(2) or, reversibly, the heterolytic activation of H(2) by Lewis pairs (CF(3))(3)BPH(3-n)(Me)(n) have been theoretically investigated at the MP2 and DFT levels. It is found that the B-H...H-P bonds behave similarly to those in neutral pairs and ion-molecule complexes in most respects, such as the linearity of the H...H-P moiety, the characteristics of the electron transfer and rearrangement, and the topological properties of the DHB critical point, except that in certain cases, a blue-shifting of the H-bond vibrational frequency is observed. In [(CF(3))(3)BH(-)][HPH(3-n)(Me)(n)(+)], the proton shifting within the complexes leads to the formation of the dihydrogen complex B(CF(3))(3)(eta(2)-H(2)), which is followed by a subsequent H(2) release. The stability of B(CF(3))(3)(eta(2)-H(2)) (D(e)/D(0) = 10.8/6.0 kcal/mol) makes the proton-hydride combination proceed in a fashion similar to the protonation reactions in transition-metal hydrides rather than those in group 13 hydrides EH(4)(-) (E = B, Al, Ga). As for the H(2)-splitting reaction R(3)BPR'(3) + H(2) --> [R(3)BH(-)][HPR'(3)(+)], classical Lewis pair (CLP) (CF(3))(3)BPH(3) exhibits a high barrier and results in an unstable ion pair product [(CF(3))(3)BH(-)][HPH(3)(+)] compared with the "frustrated Lewis pair" (FLP) (C(6)F(5))(3)BP(tBu)(3). A detailed analysis of the mechanistic aspects of H(2) activation by (CF(3))(3)BPH(3) and (C(6)F(5))(3)BP(tBu)(3), supported by another CLP (CF(3))(3)BP(tBu)(3) which has a binding energy comparable to (CF(3))(3)BPH(3) but a reaction exothermicity comparable to (C(6)F(5))(3)BP(tBu)(3), allows us to suggest that the low stability of FLP (C(6)F(5))(3)BP(tBu)(3) is the determining factor for the low reaction barrier. The relative stability and other properties of the ion pair products [R(3)BH(-)][HPR'(3)(+)] have also been analyzed. Results strongly support the view proposed by Rokob et al. [ Rokob , T. A. ; Hamza , A. ; Stirling , A. ; Soos , T. ; Papai , I. Angew. Chem., Int. Ed. 2008 , 47 , 2435 ] that the frustration energy lowers the energy barrier and increases the exothermicity of the reaction.
Collapse
Affiliation(s)
- Shulin Gao
- State Key Laboratory of Physical Chemistry of Solid Surfaces and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | | | | |
Collapse
|
15
|
Hugas D, Simon S, Duran M, Fonseca Guerra C, Bickelhaupt FM. Dihydrogen bonding: donor-acceptor bonding (AH...HX) versus the H2 molecule (A-H2-X). Chemistry 2009; 15:5814-22. [PMID: 19388032 DOI: 10.1002/chem.200802641] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Dihydrogen bonds (DHBs) play a role in, among others, crystal packing, organometallic reaction mechanisms, and potential hydrogen-storage materials. In this work we have analyzed the central H-H bond in linear H(4), LiH...HX, BH(4)(-)...HX, and AlH(4)(-)...HX complexes with various X by using the quantitative molecular orbital model contained in Kohn-Sham density functional theory at the BP86/TZ2P level of theory. First, we address the questions of if and how one can distinguish, in principle, between a H...H donor-acceptor DHB and the formation of an H(2) molecule by using the simple H(4) model system. The results of these analyses have been used to gain an understanding of the bonding in more realistic model systems (some of which have been studied experimentally), and how this differs from the bonding in H(4).
Collapse
Affiliation(s)
- David Hugas
- Institut de Química Computacional and Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Catalonia, Spain
| | | | | | | | | |
Collapse
|
16
|
Olejniczak M, Pecul M. Spin-Spin Coupling Constants Transmitted through IrH⋅⋅⋅HN Dihydrogen Bonds. Chemphyschem 2009; 10:1247-59. [DOI: 10.1002/cphc.200800817] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
17
|
Filippov OA, Tsupreva VN, Golubinskaya LM, Krylova AI, Bregadze VI, Lledos A, Epstein LM, Shubina ES. Proton-Transfer and H2-Elimination Reactions of Trimethylamine Alane: Role of Dihydrogen Bonding and Lewis Acid−Base Interactions. Inorg Chem 2009; 48:3667-78. [DOI: 10.1021/ic802262h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Oleg A. Filippov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia, and Departament de Química, Edifici Cn, Universitat Autónoma de Barcelona, 08193 Bellaterra, Spain
| | - Victoria N. Tsupreva
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia, and Departament de Química, Edifici Cn, Universitat Autónoma de Barcelona, 08193 Bellaterra, Spain
| | - Lyudmila M. Golubinskaya
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia, and Departament de Química, Edifici Cn, Universitat Autónoma de Barcelona, 08193 Bellaterra, Spain
| | - Antonina I. Krylova
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia, and Departament de Química, Edifici Cn, Universitat Autónoma de Barcelona, 08193 Bellaterra, Spain
| | - Vladimir I. Bregadze
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia, and Departament de Química, Edifici Cn, Universitat Autónoma de Barcelona, 08193 Bellaterra, Spain
| | - Agusti Lledos
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia, and Departament de Química, Edifici Cn, Universitat Autónoma de Barcelona, 08193 Bellaterra, Spain
| | - Lina M. Epstein
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia, and Departament de Química, Edifici Cn, Universitat Autónoma de Barcelona, 08193 Bellaterra, Spain
| | - Elena S. Shubina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia, and Departament de Química, Edifici Cn, Universitat Autónoma de Barcelona, 08193 Bellaterra, Spain
| |
Collapse
|
18
|
Singh PC, Maity DK, Patwari GN. Infrared-optical double-resonance measurements on O-H...H-Ge dihydrogen-bonded phenol-triethylgermanium hydride complex in the gas phase. J Phys Chem A 2008; 112:5930-4. [PMID: 18529038 DOI: 10.1021/jp801035u] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Spectroscopic investigation of a dihydrogen-bonded complex between phenol and triethylgermanium hydride is reported here. Laser-induced fluorescence excitation, fluorescence-detected infrared, and IR-UV hole-burning spectroscopic studies were carried out in supersonic jet to investigate the complex formation between phenol and triethylgermanium hydride. The lowering of the O-H stretching frequency of the phenol moiety in the complex with triethylgermanium hydride clearly establishes the role of phenol as hydrogen bond donor. The experimental results together with the ab-initio calculations unambiguously confirm formation of an O-H...H-Ge dihydrogen-bonded complex between phenol and triethylgermanium hydride.
Collapse
Affiliation(s)
- Prashant Chandra Singh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | | | | |
Collapse
|
19
|
Ghiasi R, Monajjemi M. Theoretical study of the dihydrogen bonded HMH…HB≡NH and HMH…HN≡BH complexes (M[dbnd]Be, Mg and Ca): properties and structures. MAIN GROUP CHEMISTRY 2008. [DOI: 10.1080/10241220802230666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
20
|
Alkorta I, Elguero J, Grabowski SJ. How To Determine Whether Intramolecular H···H Interactions Can Be Classified as Dihydrogen Bonds. J Phys Chem A 2008; 112:2721-7. [PMID: 18311957 DOI: 10.1021/jp711387g] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ibon Alkorta
- Instituto de Química Médica (CSIC), Juan de la Cierva, 3, 28006-Madrid, Spain, and Department of Crystallography and Crystal Chemistry, University of Łódź, 90-236 Łódź ul., Pomorska 149/153, Poland
| | - José Elguero
- Instituto de Química Médica (CSIC), Juan de la Cierva, 3, 28006-Madrid, Spain, and Department of Crystallography and Crystal Chemistry, University of Łódź, 90-236 Łódź ul., Pomorska 149/153, Poland
| | - Sławomir J. Grabowski
- Instituto de Química Médica (CSIC), Juan de la Cierva, 3, 28006-Madrid, Spain, and Department of Crystallography and Crystal Chemistry, University of Łódź, 90-236 Łódź ul., Pomorska 149/153, Poland
| |
Collapse
|
21
|
Hugas D, Simon S, Duran M. Electron density topological properties are useful to assess the difference between hydrogen and dihydrogen complexes. J Phys Chem A 2007; 111:4506-12. [PMID: 17455920 DOI: 10.1021/jp070080u] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
B3LYP/6-31++G(d,p) and MP2/6-31++G(d,p) calculations for a series of hydrogen- and dihydrogen-bonded systems have been carried out in order to analyze the topology of the electron density and the energy densities at the respective energy-optimized bond critical points. Even though there are no significant differences when these properties are represented as a function of the dimerization energy, they can be separated into two well-defined sets if those properties are correlated with intermolecular distances. When analyzing the dependence of various properties with equilibrium bond lengths, the specific trends of dihydrogen bond systems consist of (a) lower electron density at the bond critical point, and (b) lower concentration/depletion of that density which can be translated in a different behavior for the Laplacian components. Furthermore, the sets of molecules form two different plots which allow for a valuable classification between hydrogen- and dihydrogen-bonded systems.
Collapse
Affiliation(s)
- David Hugas
- Institut de Química Computacional and Departament de Química, Universitat de Girona, 17071-Girona, Catalonia, Spain
| | | | | |
Collapse
|
22
|
Grabowski SJ. Hydrogen Bonds with π and σ Electrons as the Multicenter Proton Acceptors: High Level ab Initio Calculations. J Phys Chem A 2007; 111:3387-93. [PMID: 17411022 DOI: 10.1021/jp070530i] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pi-electrons of acetylene and sigma-electrons of molecular hydrogen were investigated as Lewis bases in different complexes. Hence high level ab initio calculations were performed up to the MP2/6-311++G(3df,3pd) level of approximation. It was found that species analyzed possess characteristics typical for H-bonded systems. The Bader theory was additionally applied; bond paths between proton and pi-electrons of acetylene or sigma-electrons of molecular hydrogen were detected with the corresponding bond critical points attributed to the proton-acceptor interactions. Numerous correlations between topological, geometrical and energetic parameters were also found. For example, the H...pi or H...sigma interaction is stronger for the shorter corresponding distance between the proton and the middle of C[triple bond]C or H-H bond. It is connected with the greater elongation of C[triple bond]C or H-H bonds and the greater transfer of electron charge from the Lewis base to the Lewis acid.
Collapse
|
23
|
Singh PC, Patwari GN. Proton Affinity Correlations between Hydrogen and Dihydrogen Bond Acceptors. J Phys Chem A 2007; 111:3178-83. [PMID: 17402719 DOI: 10.1021/jp070031h] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Several series of hydrogen- and dihydrogen-bonded complexes with HCN, C2H2, HF, H2O, CH3CONH2, and CH3COOH as donors and H2O, MeOH, EtOH, MeOMe, NH3, NH2Me, NHMe2, NMe3, NEtMe2, and BH3-NMe3 as acceptors were investigated using the MP2/6-311++G(d,p) level of theory. The total lowering of the X-H stretching frequencies in the hydrogen-bonded complexes were linearly correlated with the proton affinities of the accepting bases. From comparison of hydrogen- and dihydrogen-bonded complexes, a scaling factor to estimate the exact proton affinity of a dihydrogen bond acceptor was developed. Further, the scaling factor involving linear donors (1.204) is marginally higher than that involving nonlinear donor molecules (1.162). Finally, it was found that, given identical conditions, a hydrogen bond will be about 16-20% stronger than a corresponding dihydrogen bond.
Collapse
Affiliation(s)
- Prashant Chandra Singh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | | |
Collapse
|
24
|
Welch GC, Stephan DW. Facile Heterolytic Cleavage of Dihydrogen by Phosphines and Boranes. J Am Chem Soc 2007; 129:1880-1. [PMID: 17260994 DOI: 10.1021/ja067961j] [Citation(s) in RCA: 678] [Impact Index Per Article: 39.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gregory C Welch
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, Ontario, Canada N9B 3P4
| | | |
Collapse
|
25
|
Abstract
Although reversible covalent activation of molecular hydrogen (H2) is a common reaction at transition metal centers, it has proven elusive in compounds of the lighter elements. We report that the compound (C6H2Me3)2PH(C6F4)BH(C6F5)2 (Me, methyl), which we derived through an unusual reaction involving dimesitylphosphine substitution at a para carbon of tris(pentafluorophenyl) borane, cleanly loses H2 at temperatures above 100 degrees C. Preliminary kinetic studies reveal this process to be first order. Remarkably, the dehydrogenated product (C6H2Me3)2P(C6F4)B(C6F5)2 is stable and reacts with 1 atmosphere of H2 at 25 degrees C to reform the starting complex. Deuteration studies were also carried out to probe the mechanism.
Collapse
Affiliation(s)
- Gregory C Welch
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, Ontario N9B 3P4, Canada
| | | | | | | |
Collapse
|
26
|
Patwari GN, Fujii A, Mikami N. Complete infrared spectroscopic characterization of phenol-borane-trimethylamine dihydrogen-bonded complex in the gas phase. J Chem Phys 2006; 124:241103. [PMID: 16821963 DOI: 10.1063/1.2212937] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In the paper we report the first observation of the vibrational spectrum in the B-H stretching region in the gas phase for a dihydrogen bonded complex. The appearance of three transitions for the B-H stretching modes of a (di)hydrogen-bonded complex involving borane-trimethylamine indicates the lowering of the symmetry on the BH3 group upon interaction with phenol. Further, the shift in the O-H stretching frequency indicates that phenol is hydrogen bonded to borane-trimethylamine. The two sets of the present data establish, unequivocally, the formation of O-H...H-B dihydrogen-bonded complex between phenol and borane-trimethylamine.
Collapse
Affiliation(s)
- G Naresh Patwari
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
| | | | | |
Collapse
|
27
|
Yan S, Bu Y, Cukier RI. Electron bridging dihydrogen bond in the imidazole-contained anion derivatives. J Chem Phys 2006; 124:124314. [PMID: 16599681 DOI: 10.1063/1.2173255] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The large contact distance of electron bridging dihydrogen bond (EBDB), which is over 2.4 A, is the most prominent characteristic for the imidazole-contained anion derivatives. The elongation of N-H bond and the shortening of H...H distance can be observed upon hydration and hydrogenation. Transformation from EBDB to dissociative H2 is convenient upon sequential hydrogenation. The H...H distance decreases with the enhancement of the electronegativity of the heavy atom which contacts directly with one of these two hydrogen atoms. NMR shielding of the bonding N varies significantly upon hydration and hydrogenation. The spin-spin coupling constants, 1J(H-H), is dominated predominantly by the paramagnetic spin-orbit and diamagnetic spin-orbit contributions instead of the Fermi-contact term. Enhancement of electronegativity of the heavy atom leads to the increase of 1J(H-H) coupling constants. The stabilization is enhanced upon hydration predominantly for the formation of O-H...N H bond, while it is reversed upon hydrogenation for the cleavage of big pi bond, Pi5(6). Enhancement of the stability is demonstrated by the increase of stabilization energy and vertical electron detachment energy with the electronegativity of the heavy atom. The dominant contributions for the formation of such electron bridging dihydrogen bond are the high polarity of each fragment, large electron density between two fragments, and strong bonding interaction of the bridging electron with H(N) atoms. The H...H interaction can be formed by X-Hdelta+ and Hdelta- -Y polar molecules in Hdelta+...Hdelta- and Hdelta+...e...Hdelta+ of two forms.
Collapse
Affiliation(s)
- Shihai Yan
- Institute of Theoretical Chemistry, Shandong University, Jinan 250100, People's Republic of China
| | | | | |
Collapse
|
28
|
|
29
|
Grant DJ, Dixon DA. Thermodynamic Properties of Molecular Borane Phosphines, Alane Amines, and Phosphine Alanes and the [BH4-][PH4+], [AlH4-][NH4+], and [AlH4-][PH4+] Salts for Chemical Hydrogen Storage Systems from ab Initio Electronic Structure Theory. J Phys Chem A 2005; 109:10138-47. [PMID: 16838934 DOI: 10.1021/jp054152y] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The heats of formation for the molecules BH(3)PH(3), BH(2)PH(2), HBPH, AlH(3)NH(3), AlH(2)NH(2), HAlNH, AlH(3)PH(3), AlH(2)PH(2), HAlPH, AlH(4)(-), PH(3), PH(4), and PH(4)(+), as well as the diatomics BP, AlN, and AlP, have been calculated by using ab initio molecular orbital theory. The coupled cluster with single and double excitations and perturbative triples method (CCSD(T)) was employed for the total valence electronic energies. Correlation consistent basis sets were used, up through the augmented quadruple-zeta, to extrapolate to the complete basis set limit. Additional d core functions were used for Al and P. Core/valence, scalar relativistic, and spin-orbit corrections were included in an additive fashion to predict the atomization energies. Geometries were calculated at the CCSD(T) level up through at least aug-cc-pVTZ and frequencies were calculated at the CCSD(T)/aug-cc-pVDZ level. The heats of formation of the salts [BH(4)(-)][PH(4)(+)](s), [AlH(4)(-)][NH(4)(+)](s), and [AlH(4)(-)][PH(4)(+)](s) have been estimated by using an empirical expression for the lattice energy and the calculated heats of formation of the two component ions. The calculations show that both AlH(3)NH(3)(g) and [AlH(4)(-)][NH(4)(+)](s) can serve as good hydrogen storage systems that release H(2) in a slightly exothermic process. In addition, AlH(3)PH(3) and the salts [AlH(4)(-)][PH(4)(+)] and [BH(4)(-)][PH(4)(+)] have the potential to serve as H(2) storage systems. The hydride affinity of AlH(3) is calculated to be -70.4 kcal/mol at 298 K. The proton affinity of PH(3) is calculated to be 187.8 kcal/mol at 298 K in excellent agreement with the experimental value of 188 kcal/mol. PH(4) is calculated to be barely stable with respect to loss of a hydrogen to form PH(3).
Collapse
Affiliation(s)
- Daniel J Grant
- Department of Chemistry, University of Alabama, P.O. Box 870336, Tuscaloosa, Alabama 35487-0336, USA
| | | |
Collapse
|
30
|
Chen YL, Huang CH, Hu WP. Theoretical Study on the Small Clusters of LiH, NaH, BeH2, and MgH2. J Phys Chem A 2005; 109:9627-36. [PMID: 16866416 DOI: 10.1021/jp051978r] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
High-level ab initio molecular orbital theory is used to calculate the geometries, vibrational frequencies, atomic charges, and binding energies of the small clusters (LiH)(n), (NaH)(n), (BeH(2))(n), and (MgH(2))(n) (n = 1-4). For (LiH)(n) and (NaH)(n), there are planar cyclic structures when n = 2, 3. We have found the cubic structure T(d) in addition to the planar cyclic D(4)(h) when n = 4. The D(4)(h) is less stable than the T(d) geometry. For (BeH(2))(n) and (MgH(2))(n), when n = 3, there are three kinds of structures: chain C(2)(v), planar cyclic D(3)(h), and hat-like C(2)(v). The C(2)(v) geometry is more stable than the others. When n = 4, there are four kinds of structures: chain D(2)(h), cubic T(d), string-like C(2), and cubic transformation C(1). The most stable compounds in the families of (LiH)(n), (NaH)(n), (BeH(2))(n), and (MgH(2))(n) are cubic T(d), cubic T(d), chain D(2)(h), and string-like C(2) geometries, respectively, when n = 4. Calculated binding energies range from -24 to -37 kcal/mol for (LiH)(n) and --19 to -30 kcal/mol for (NaH)(n), (BeH(2))(n), and (MgH(2))(n). The hydrogen atoms in hydride clusters always have negative charges. The atomic charges of planar cyclic structures are weaker than those of cubic structures, and there is a tendency of reducing along with the increase of the cluster size. The vibrational frequencies of planar cyclic structures have consistent tendency, too. It indicates that the bond distance increases with the ionic character of the bond.
Collapse
Affiliation(s)
- Yung-Lung Chen
- Department of Chemical Engineering, WuFeng Institute of Technology, Chia-Yi, Min-Hsiung, Taiwan 621.
| | | | | |
Collapse
|
31
|
Hugas D, Simon S, Duran M. MH⋅sHX Dihydrogen Bond with M≡Li, Na and X≡F, Cl, Br: A CP-Corrected PES Calculation and an AIM Analysis. Struct Chem 2005. [DOI: 10.1007/s11224-005-4456-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
32
|
Grabowski SJ, Sokalski WA, Leszczynski J. How Short Can the H···H Intermolecular Contact Be? New Findings that Reveal the Covalent Nature of Extremely Strong Interactions. J Phys Chem A 2005; 109:4331-41. [PMID: 16833763 DOI: 10.1021/jp0444215] [Citation(s) in RCA: 155] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ab initio calculations at the MP2/6-311++G(d,p) and MP2/aug-cc-pVDZ//MP2/aug-cc-pVTZ levels have been performed for the following complexes: H2OH+...HBeH, H2OH+...HBeBeH, H2OH+...HBeF, HClOH+...HBeH, Cl2OH+...HBeH, and Cl2OH+...HBeF. For all dimers considered, extremely short H...H intermolecular contacts (1.0-1.3 A) were obtained. These are the shortest intermolecular distances which have ever been reported, with binding energies within the range of 13.7-24.3 kcal/mol (MP2/aug-cc-pVDZ//MP2/aug-cc-pVTZ level). The interaction energies of the complexes analyzed were also extrapolated to the complete basis set (CBS) limit. To explain the nature of such strong interactions, the Bader theory was applied, and the characteristics of the bond critical points (BCPs) were analyzed. It was pointed out that for the major part of the H...H contacts considered here the Laplacian of the electron density at H...H BCP is negative indicating the partly covalent nature of such a connection. The term "covalent character of the hydrogen bond" used sometimes in recent studies is discussed. An analysis of the interaction energy components for dihydrogen bonded systems considered indicates that in contrast to conventional hydrogen bonded systems the attractive electrostatic term is outweighed by the repulsive exchange energy term and that the higher order delocalization energy term is the most important attractive term.
Collapse
Affiliation(s)
- Sławomir J Grabowski
- Department of Crystallography and Crystal Chemistry, University of Łódź, 90-236 Łódź, ul. Pomorska 149/153, Poland.
| | | | | |
Collapse
|
33
|
Patwari GN. Proton Affinities of Borane−Amines: Consequences on Dihydrogen Bonding. J Phys Chem A 2005; 109:2035-8. [PMID: 16838971 DOI: 10.1021/jp044445b] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The calculated proton affinities of four borane-amines using Gaussian-2 theory have been found to be comparable to conventional bases such as water, methanol, and ammonia. On the other hand the structure of protonated borane-ammonia, [HBH(3)-NH(3)](+), is found to be drastically different from that of protonated ammonia, [HNH(3)](+), and can appropriately be described as a eta(2)-H(2) complex with [BH(2)-NH(3)](+) molecular cation. Further, the proton affinities of borane-amines are related to the ease of H(2) elimination.
Collapse
|
34
|
Bakhmutov VI. Proton Transfer to Hydride Ligands with Formation of Dihydrogen Complexes: A Physicochemical View. Eur J Inorg Chem 2005. [DOI: 10.1002/ejic.200400697] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Vladimir I. Bakhmutov
- Department of Chemistry, Texas A&M University, College Station, Texas 77843‐3255, USA
| |
Collapse
|
35
|
Grabowski SJ, Sokalski WA, Leszczynski J. Nature of X−H+δ···-δH−Y Dihydrogen Bonds and X−H···σ Interactions. J Phys Chem A 2004. [DOI: 10.1021/jp049874o] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sławomir J. Grabowski
- Department of Crystallography and Crystal Chemistry, University of Łódź, 90-236 Łódź, ul. Pomorska 149/153, Poland, Computational Center for Molecular Structure and Interactions, Department of Chemistry, Jackson State University, Jackson, Mississippi 39217, and Institute of Physical and Theoretical Chemistry, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - W. Andrzej Sokalski
- Department of Crystallography and Crystal Chemistry, University of Łódź, 90-236 Łódź, ul. Pomorska 149/153, Poland, Computational Center for Molecular Structure and Interactions, Department of Chemistry, Jackson State University, Jackson, Mississippi 39217, and Institute of Physical and Theoretical Chemistry, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Jerzy Leszczynski
- Department of Crystallography and Crystal Chemistry, University of Łódź, 90-236 Łódź, ul. Pomorska 149/153, Poland, Computational Center for Molecular Structure and Interactions, Department of Chemistry, Jackson State University, Jackson, Mississippi 39217, and Institute of Physical and Theoretical Chemistry, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland
| |
Collapse
|
36
|
Hugas D, Simon S, Duran M. Counterpoise-corrected potential energy surfaces for dihydrogen bonded systems. Chem Phys Lett 2004. [DOI: 10.1016/j.cplett.2004.01.083] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
37
|
Cybulski H, Pecul M, Sadlej J, Helgaker T. Characterization of dihydrogen-bonded D–H⋯H–A complexes on the basis of infrared and magnetic resonance spectroscopic parameters. J Chem Phys 2003. [DOI: 10.1063/1.1597633] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
38
|
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
|
39
|
Robertson KN, Knop O, Cameron TS. C-H···H-C interactions in organoammonium tetraphenylborates: another look at dihydrogen bonds. CAN J CHEM 2003. [DOI: 10.1139/v03-080] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The crystal structures of the tetraphenylborates of the dabcoH+, guanidinium (MeCN solvate), and biguanidinium cations are shown to contain a variety of C-H···H-C dihydrogen (DB) bonds of nominally zero polarity, as well as a variety of N-H···N, C-H···N, N-H···Ph, and C-H···Ph hydrogen (HB) bonds. These intermolecular bonds have been characterized topologically after multipole refinement of the structures. The coexistence of the DBs and HBs in each of the structures makes it possible to establish their relative strength hierarchy. It also illustrates the importance of the DBs in satisfying the tendency of these structures to maximize the total intermolecular bonding engagement. To compare the above DBs with other DBs, the results of an extensive set of MP2/6-31G(d,p) calculations (supplied by I. Alkorta) were analyzed for reference correlations between the bond-critical parameters. Thus, for an X-H···H-Y bond, the difference Δε(H)m between the Mulliken charges on the H atoms in the uncomplexed X-H and H-Y components correlates quite well with the X-H···H-Y parameters and can be used for predicting the topological strength of an X-H···H-Y bond. The use of the difference Δε(H)c in the bond does not appear to change the correlation significantly; closer correlations are observed when the amount of charge transferred on formation of the H···H bond is used instead of Δε(H)m or Δε(H)c. Bonding interactions are obtained even between like or symmetry-related H atoms as a consequence of induced-dipole interactions, which accounts for the existence of the above intermolecular C-H···H-C bonds with d(H···H) = 2.182.57 Å, electron density at the bond-critical point of ~0.050.08 e/Å3, and a rough estimate of the H···H binding energy of ~1-5 kcal/mol. Examination of the bond-critical parameters of X-H···H-Y bonds also suggests a criterion of stability of these bonds with respect to the transition from non-shared (closed-shell) X-H···H-Y interaction to covalent (shared-shell) X···H-H···Y interaction. This transition appears to be discontinuous.Key words: bond-critical parameters, bond topology, dihydrogen bonds, hydrogen bonds, organoammonium tetraphenylborates.
Collapse
|
40
|
|
41
|
Patwari G, Ebata T, Mikami N. Gas phase dihydrogen bonding: clusters of borane-amines with phenol and aniline. Chem Phys 2002. [DOI: 10.1016/s0301-0104(02)00529-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
42
|
McDowell SAC, Forde TS. Isotope effects in linear dihydrogen bonded complexes containing LiH. J Chem Phys 2002. [DOI: 10.1063/1.1503774] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
43
|
Merino G, Bakhmutov VI, Vela A. Do Cooperative Proton−Hydride Interactions Explain the Gas−Solid Structural Difference of BH3NH3? J Phys Chem A 2002. [DOI: 10.1021/jp026087n] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gabriel Merino
- Departamento de Química, Centro de Investigación y de Estudios Avanzados. A.P. 14-740, C.P. 07000, México D.F, México
| | - Vladimir I. Bakhmutov
- Departamento de Química, Centro de Investigación y de Estudios Avanzados. A.P. 14-740, C.P. 07000, México D.F, México
| | - Alberto Vela
- Departamento de Química, Centro de Investigación y de Estudios Avanzados. A.P. 14-740, C.P. 07000, México D.F, México
| |
Collapse
|
44
|
Naresh Patwari G, Ebata T, Mikami N. Dihydrogen bonded phenol–borane-dimethylamine complex: An experimental and theoretical study. J Chem Phys 2002. [DOI: 10.1063/1.1459415] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
45
|
Affiliation(s)
- R Custelcean
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | | |
Collapse
|
46
|
Berski S, Lundell J, Latajka Z. A density functional study of the xenon dihydride–water complex. J Mol Struct 2000. [DOI: 10.1016/s0022-2860(00)00486-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|