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Shiryaev AA, Burkhanova TM, Mitoraj MP, Kukulka M, Sagan F, Mahmoudi G, Babashkina MG, Bolte M, Safin DA. Supramolecular structures of Ni II and Cu II with the sterically demanding Schiff base dyes driven by cooperative action of preagostic and other non-covalent interactions. IUCRJ 2021; 8:351-361. [PMID: 33953922 PMCID: PMC8086159 DOI: 10.1107/s2052252521000610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
This work reports on synthesis and extensive experimental and theoretical investigations on photophysical, structural and thermal properties of the NiII and CuII discrete mononuclear homoleptic complexes [Ni(L I,II)2] and [Cu(L I,II)2] fabricated from the Schiff base dyes o-HOC6H4-CH=N-cyclo-C6H11 (HL I) and o-HOC10H6-CH=N-cyclo-C6H11 (HL II), containing the sterically crowding cyclo-hexyl units. The six-membered metallocycles adopt a clearly defined envelope conformation in [Ni(L II)2], while they are much more planar in the structures of [Ni(L I)2] and [Cu(L I,II)2]. It has been demonstrated by in-depth bonding analyses based on the ETS-NOCV and Interacting Quantum Atoms energy-decomposition schemes that application of the bulky substituents, containing several C-H groups, has led to the formation of a set of classical and unintuitive intra- and inter-molecular interactions. All together they are responsible for the high stability of [Ni(L I,II)2] and [Cu(L I,II)2]. More specifically, London dispersion dominated intramolecular C-H⋯O, C-H⋯N and C-H⋯H-C hydrogen bonds are recognized and, importantly, the attractive, chiefly the Coulomb driven, preagostic (not repulsive anagostic) C-H⋯Ni/Cu interactions have been discovered despite their relatively long distances (∼2.8-3.1 Å). All the complexes are further stabilized by the extremely efficient intermolecular C-H⋯π(benzene) and C-H⋯π(chelate) interactions, where both the charge-delocalization and London dispersion constituents appear to be crucial for the crystal packing of the obtained complexes. All the complexes were found to be photoluminescent in CH2Cl2, with [Cu(L II)2] exhibiting the most pronounced emission - the time-dependent density-functional-theory computations revealed that it is mostly caused by metal-to-ligand charge-transfer transitions.
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Affiliation(s)
- Alexey A. Shiryaev
- University of Tyumen, Volodarskogo Street 6, Tyumen, 625003, Russian Federation
- Innovation Center for Chemical and Pharmaceutical Technologies, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Street 19, Ekaterinburg, 620002, Russian Federation
| | - Tatyana M. Burkhanova
- University of Tyumen, Volodarskogo Street 6, Tyumen, 625003, Russian Federation
- Kurgan State University, Sovetskaya Street 63/4, 640020, Russian Federation
| | - Mariusz P. Mitoraj
- Department of Theoretical Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków, 30-387, Poland
| | - Mercedes Kukulka
- Department of Theoretical Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków, 30-387, Poland
| | - Filip Sagan
- Department of Theoretical Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków, 30-387, Poland
| | - Ghodrat Mahmoudi
- Department of Chemistry, Faculty of Science, University of Maragheh, PO Box 55181-83111, Maragheh, Iran
| | - Maria G. Babashkina
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Place L. Pasteur 1, Louvain-la-Neuve, 1348, Belgium
| | - Michael Bolte
- Institut für Anorganische Chemie, J.-W.-Goethe-Universität, Frankfurt/Main, Germany
| | - Damir A. Safin
- University of Tyumen, Volodarskogo Street 6, Tyumen, 625003, Russian Federation
- Innovation Center for Chemical and Pharmaceutical Technologies, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Street 19, Ekaterinburg, 620002, Russian Federation
- Kurgan State University, Sovetskaya Street 63/4, 640020, Russian Federation
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Ghosh K, Harms K, Bauzá A, Frontera A, Chattopadhyay S. σ-Hole halogen bonding interactions in a mixed valence cobalt(iii/ii) complex and anti-electrostatic hydrogen bonding interaction in a cobalt(iii) complex: a theoretical insight. CrystEngComm 2018. [DOI: 10.1039/c8ce01323c] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Supramolecular interactions in the solid state structures of a mixed valence cobalt(ii/iii) complex and a cobalt(iii) complex have been studied using DFT calculations.
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Affiliation(s)
- Kousik Ghosh
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata - 700032
- India
| | - Klaus Harms
- Fachbereich Chemie
- Philipps-Universität Marburg
- D-35032 Marburg
- Germany
| | - Antonio Bauzá
- Departamento de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | - Antonio Frontera
- Departamento de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
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