1
|
Danés S, Müller C, Wirtz L, Huch V, Block T, Pöttgen R, Schäfer A, Andrada DM. Bonding Situation in Stannocene and Plumbocene N-Heterocyclic Carbene Complexes. Organometallics 2020. [DOI: 10.1021/acs.organomet.9b00667] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sergi Danés
- Saarland University, Faculty of Natural Sciences and Technology, Department of Chemistry, Campus Saarbrücken, 66123 Saarbrücken, Federal Republic of Germany
| | - Carsten Müller
- Saarland University, Faculty of Natural Sciences and Technology, Department of Chemistry, Campus Saarbrücken, 66123 Saarbrücken, Federal Republic of Germany
| | - Lisa Wirtz
- Saarland University, Faculty of Natural Sciences and Technology, Department of Chemistry, Campus Saarbrücken, 66123 Saarbrücken, Federal Republic of Germany
| | - Volker Huch
- Saarland University, Faculty of Natural Sciences and Technology, Department of Chemistry, Campus Saarbrücken, 66123 Saarbrücken, Federal Republic of Germany
| | - Theresa Block
- University of Münster, Faculty of Chemistry and Pharmacy, Institute of Inorganic and Analytical Chemistry, Corrensstrasse 30, 48149 Münster, Federal Republic of Germany
| | - Rainer Pöttgen
- University of Münster, Faculty of Chemistry and Pharmacy, Institute of Inorganic and Analytical Chemistry, Corrensstrasse 30, 48149 Münster, Federal Republic of Germany
| | - André Schäfer
- Saarland University, Faculty of Natural Sciences and Technology, Department of Chemistry, Campus Saarbrücken, 66123 Saarbrücken, Federal Republic of Germany
| | - Diego M. Andrada
- Saarland University, Faculty of Natural Sciences and Technology, Department of Chemistry, Campus Saarbrücken, 66123 Saarbrücken, Federal Republic of Germany
| |
Collapse
|
2
|
Fukin GK, Cherkasov AV, Baranov EV, Rumyantcev RV, Sazonova EV, Artemov AN. The Electron Density Distribution in Crystals of η
6
–[1,4–dihydrospiro(2
H
–3,1–benzoxazine–2,1′–cyclohexane)]tricarbonylchromium(0): Experiment
vs
Molecular Invariom. ChemistrySelect 2019. [DOI: 10.1002/slct.201901394] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Georgy K. Fukin
- G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina str., 49, Nizhny Novgorod 603137 Russian Federation
| | - Anton V. Cherkasov
- G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina str., 49, Nizhny Novgorod 603137 Russian Federation
| | - Evgeny V. Baranov
- G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina str., 49, Nizhny Novgorod 603137 Russian Federation
| | - Roman V. Rumyantcev
- G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences Tropinina str., 49, Nizhny Novgorod 603137 Russian Federation
| | - Elena V. Sazonova
- Chemical DepartmentLobachevsky State University of Nizhny Novgorod Gagarina Pr., 23, Nizhny Novgorod 603950 Russian Federation
| | - Alexander N. Artemov
- Chemical DepartmentLobachevsky State University of Nizhny Novgorod Gagarina Pr., 23, Nizhny Novgorod 603950 Russian Federation
| |
Collapse
|
3
|
Teuteberg TL, Eckhoff M, Mata RA. A full additive QM/MM scheme for the computation of molecular crystals with extension to many-body expansions. J Chem Phys 2019; 150:154118. [PMID: 31005074 DOI: 10.1063/1.5080427] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
An additive quantum mechanics/molecular mechanics (QM/MM) model for the theoretical investigation of molecular crystals (AC-QM/MM) is presented. At the one-body level, a single molecule is chosen as the QM region. The MM region around it consists of a finite cluster of explicit MM atoms, represented by point charges and Lennard-Jones potentials, with additional background charges to mimic periodic electrostatics. Cluster charges are QM-derived and calculated self-consistently to ensure a polarizable embedding. We have also considered the extension to many-body QM corrections, calculating the interactions of a central molecule to neighboring units in the crystal. Full gradient expressions have been derived, also including symmetry information. The scheme allows for the calculation of molecular properties as well as unconstrained optimizations of the molecular geometry and cell parameters with respect to the lattice energy. Benchmarking the approach with the X23 reference set confirms the convergence pattern of the many-body extension although a comparison to plane-wave density functional theory reveals a systematic overestimation of cohesive energies by 6-16 kJ mol-1. While the scheme primarily aims to provide an inexpensive and flexible way to model a molecule in a crystal environment, it can also be used to reach highly accurate cohesive energies by the straightforward application of wave function correlated approaches. Calculations with local coupled cluster with singles, doubles, and perturbative triples, albeit limited to numerical gradients, show an impressive agreement with experimental estimates for small molecular crystals.
Collapse
Affiliation(s)
- Thorsten L Teuteberg
- Institut für Physikalische Chemie, Universität Göttingen, Tammannstraße 6, Göttingen D-37077, Germany
| | - Marco Eckhoff
- Institut für Physikalische Chemie, Universität Göttingen, Tammannstraße 6, Göttingen D-37077, Germany
| | - Ricardo A Mata
- Institut für Physikalische Chemie, Universität Göttingen, Tammannstraße 6, Göttingen D-37077, Germany
| |
Collapse
|
4
|
Combes S, Tran KT, Ayhan MM, Karoui H, Rockenbauer A, Tonetto A, Monnier V, Charles L, Rosas R, Viel S, Siri D, Tordo P, Clair S, Wang R, Bardelang D, Ouari O. Triangular Regulation of Cucurbit[8]uril 1:1 Complexes. J Am Chem Soc 2019; 141:5897-5907. [PMID: 30808163 DOI: 10.1021/jacs.9b00150] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Triangular shapes have inspired scientists over time and are common in nature, such as the flower petals of oxalis triangularis, the triangular faces of tetrahedrite crystals, and the icosahedron faces of virus capsids. Supramolecular chemistry has enabled the construction of triangular assemblies, many of which possess functional features. Among these structures, cucurbiturils have been used to build supramolecular triangles, and we recently reported paramagnetic cucurbit[8]uril (CB[8]) triangles, but the reasons for their formation remain unclear. Several parameters have now been identified to explain their formation. At first sight, the radical nature of the guest was of prime importance in obtaining the triangles, and we focused on extending this concept to biradicals to get supramolecular hexaradicals. Two sodium ions were systematically observed by ESI-MS in trimer structures, and the presence of Na+ triggered or strengthened the triangulation of CB[8]/guest 1:1 complexes in solution. X-ray crystallography and molecular modeling have allowed the proposal of two plausible sites of residence for the two sodium cations. We then found that a diamagnetic guest with an H-bond acceptor function is equally good at forming CB[8] triangles. Hence, a guest molecule containing a ketone function has been precisely triangulated thanks to CB[8] and sodium cations as determined by DOSY-NMR and DLS. A binding constant for the triangulation of 1:1 to 3:3 complexes is proposed. This concept has finally been extended to the triangulation of ditopic guests toward network formation by the reticulation of CB[8] triangles using dinitroxide biradicals.
Collapse
Affiliation(s)
- Sébastien Combes
- Aix Marseille Univ , CNRS, ICR , Marseille , France.,Centre de Recherche en Cancérologie de Marseille (CRCM), CNRS UMR7258, Inserm U1068, Institut Paoli-Calmettes , Aix Marseille Univ, UM105 , 13009 Marseille , France
| | | | - Mehmet Menaf Ayhan
- Aix Marseille Univ , CNRS, ICR , Marseille , France.,Department of Chemistry , Gebze Technical University , P.K.141 , 41400 Gebze , Kocaeli , Turkey
| | - Hakim Karoui
- Aix Marseille Univ , CNRS, ICR , Marseille , France
| | - Antal Rockenbauer
- Institute of Materials and Environmental Chemistry , Hungarian Academy of Sciences , P.O. Box. 286, 1519 Budapest , Hungary.,Department of Physics , Budapest University of Technology and Economics , 1111 Budapest , Hungary
| | - Alain Tonetto
- Aix Marseille Univ , CNRS, Centrale Marseille, FSCM (FR1739), PRATIM , F-13397 Marseille , France
| | - Valérie Monnier
- Aix Marseille Univ , CNRS, Centrale Marseille, FSCM, Spectropole , Marseille , France
| | | | - Roselyne Rosas
- Aix Marseille Univ , CNRS, Centrale Marseille, FSCM, Spectropole , Marseille , France
| | - Stéphane Viel
- Aix Marseille Univ , CNRS, ICR , Marseille , France.,Institut Universitaire de France , F-75005 Paris , France
| | - Didier Siri
- Aix Marseille Univ , CNRS, ICR , Marseille , France
| | - Paul Tordo
- Aix Marseille Univ , CNRS, ICR , Marseille , France
| | - Sylvain Clair
- Aix Marseille Univ, University of Toulon , CNRS, IM2NP, Marseille , France
| | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences , University of Macau , Taipa , Macau , China
| | | | | |
Collapse
|
5
|
Müller C, Andrada DM, Bischoff IA, Zimmer M, Huch V, Steinbrück N, Schäfer A. Synthesis, Structure, and Bonding Analysis of Tin(II) Dihalide and Cyclopentadienyltin(II) Halide (Alkyl)(amino)carbene Complexes. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00861] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Carsten Müller
- Faculty of Natural Sciences and Technology, Department of Chemistry, Saarland University, 66123 Saarbrücken, Federal Republic of Germany
| | - Diego M. Andrada
- Faculty of Natural Sciences and Technology, Department of Chemistry, Saarland University, 66123 Saarbrücken, Federal Republic of Germany
| | - Inga-Alexandra Bischoff
- Faculty of Natural Sciences and Technology, Department of Chemistry, Saarland University, 66123 Saarbrücken, Federal Republic of Germany
| | - Michael Zimmer
- Faculty of Natural Sciences and Technology, Department of Chemistry, Saarland University, 66123 Saarbrücken, Federal Republic of Germany
| | - Volker Huch
- Faculty of Natural Sciences and Technology, Department of Chemistry, Saarland University, 66123 Saarbrücken, Federal Republic of Germany
| | - Nils Steinbrück
- Faculty of Natural Sciences and Technology, Department of Chemistry, Saarland University, 66123 Saarbrücken, Federal Republic of Germany
| | - André Schäfer
- Faculty of Natural Sciences and Technology, Department of Chemistry, Saarland University, 66123 Saarbrücken, Federal Republic of Germany
| |
Collapse
|
6
|
Neufeld R, Michel R, Herbst-Irmer R, Schöne R, Stalke D. Introducing a Hydrogen-Bond Donor into a Weakly Nucleophilic Brønsted Base: Alkali Metal Hexamethyldisilazides (MHMDS, M=Li, Na, K, Rb and Cs) with Ammonia. Chemistry 2016; 22:12340-6. [PMID: 27457218 DOI: 10.1002/chem.201600833] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 05/25/2016] [Indexed: 11/08/2022]
Abstract
Alkali metal 1,1,1,3,3,3-hexamethyldisilazide (MHMDSs) are one of the most utilised weakly nucleophilic Brønsted bases in synthetic chemistry and especially in natural product synthesis. Like lithium organics, they aggregate depending on the employed donor solvents. Thus, they show different reactivity and selectivity as a function of their aggregation and solvation state. To date, monomeric LiHMDS with monodentate donor bases was only characterised in solution. Since the first preparation of LiHMDS in 1959 by Wannagat and Niederprüm, all efforts to crystallise monomeric LiHMDS in the absence of chelating ligands failed. Herein, we present ammonia adducts of LiHMDS, NaHMDS, KHMDS, RbHMDS and CsHMDS with unprecedented aggregation motifs: 1) The hitherto missing monomeric key compound in the LiHMDS aggregation architectures. Monomeric crystal structures of trisolvated LiHMDS (1) and NaHMDS (2), showing unique intermolecular hydrogen bonds, 2) the unprecedented tetrasolvated KHMDS (3) and RbHMDS (4) dimers and 3) the disolvated CsHMDS (5) dimer with very close intermolecular Si-CH3 ⋅⋅⋅Cs s-block "agostic" interactions have been prepared and characterised by single-crystal X-ray structure analysis.
Collapse
Affiliation(s)
- Roman Neufeld
- Institut für Anorganische Chemie, Georg-August-Universität, Tammannstrasse 4, 37077, Göttingen, Germany
| | - Reent Michel
- Institut für Anorganische Chemie, Georg-August-Universität, Tammannstrasse 4, 37077, Göttingen, Germany
| | - Regine Herbst-Irmer
- Institut für Anorganische Chemie, Georg-August-Universität, Tammannstrasse 4, 37077, Göttingen, Germany
| | - Ralf Schöne
- Institut für Anorganische Chemie, Georg-August-Universität, Tammannstrasse 4, 37077, Göttingen, Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie, Georg-August-Universität, Tammannstrasse 4, 37077, Göttingen, Germany.
| |
Collapse
|
7
|
Clegg W, Crosbie E, Dale-Black SH, Hevia E, Honeyman GW, Kennedy AR, Mulvey RE, Ramsay DL, Robertson SD. Structurally Defined Zincated and Aluminated Complexes of Ferrocene Made by Alkali-Metal Synergistic Syntheses. Organometallics 2015. [DOI: 10.1021/om5012352] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- William Clegg
- School
of Chemistry, Newcastle University, Newcastle upon Tyne, NE1
7RU, U.K
| | - Elaine Crosbie
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, U.K
| | | | - Eva Hevia
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, U.K
| | - Gordon W. Honeyman
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, U.K
| | - Alan R. Kennedy
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, U.K
| | - Robert E. Mulvey
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, U.K
| | - Donna L. Ramsay
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, U.K
| | - Stuart D. Robertson
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, U.K
| |
Collapse
|
8
|
Niepötter B, Herbst-Irmer R, Kratzert D, Samuel PP, Mondal KC, Roesky HW, Jerabek P, Frenking G, Stalke D. Experimental Charge Density Study of a Silylone. Angew Chem Int Ed Engl 2014; 53:2766-70. [DOI: 10.1002/anie.201308609] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 10/31/2013] [Indexed: 11/06/2022]
|
9
|
Niepötter B, Herbst-Irmer R, Kratzert D, Samuel PP, Mondal KC, Roesky HW, Jerabek P, Frenking G, Stalke D. Experimentelle Elektronendichteuntersuchung eines Silylons. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201308609] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|