Investigation of Thiaborane closo- nido Conversion Pathways Promoted by N-Heterocyclic Carbenes

0502090 - ÚACH 2020 RIV US eng J - Článek v odborném periodiku
Vrána, J. - Holub, Josef - Růžičková, Z. - Fanfrlík, Jindřich - Hnyk, Drahomír - Růžička, A.
Investigation of Thiaborane closo- nido Conversion Pathways Promoted by N-Heterocyclic Carbenes.
Inorganic Chemistry. Roč. 58, č. 4 (2019), s. 2471-2482. ISSN 0020-1669. E-ISSN 1520-510X
Grant CEP: GA ČR(CZ) GA17-08045S
Institucionální podpora: RVO:61388980 ; RVO:61388963
Klíčová slova: thiaborane * ortho-carborane * structural-characterization * crystal-structures
Obor OECD: Inorganic and nuclear chemistry; Physical chemistry (UOCHB-X)
Impakt faktor: 4.825, rok: 2019
Způsob publikování: Omezený přístup
https://pubs.acs.org/doi/10.1021/acs.inorgchem.8b03037

The 12-X-closo-SB 11 H 10 (X = H or I) thiaboranes react with one or two molar equivalents of various N-heterocyclic carbenes (NHCs) to give the deprotonated 12-vertex species of [12-X-SB 11 H 9 ·NHC] [NHC-H] + composition as kinetic products. The use of one molar equivalent of a sterically more hindered NHC reactant leads to the formation of 12-X-SB 11 H 10 ·NHC adducts with a heavily distorted cage and the nido electron count. Further reaction of 12-I-SB 11 H 10 ·NHC to deboronated 12-X-SB 10 H 9 ·NHC proceeds in acetone to complete the closo-nido reaction pathway under the thermodynamic control. The structures of all compounds have been investigated by NMR spectroscopy and diffraction techniques. The results are supported by theoretical methods.
Trvalý link: http://hdl.handle.net/11104/0294036


Vědecká data: CCDC, ACS publications