Donor-stabilized germylium cations. To the scheme of formation of bis(chelate) germylium ions using the complexes with lactamomethyl (С,О)-chelate ligand (enantolactam derivatives) as an example


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Аннотация

Bis(chelate) dichlorogermane (L8CH2)2GeCl2 (1) with the monoanionic lactamomethyl (С,О)-chelate ligand based on enantolactam (L8H) was synthesized, and its molecular and crystal structures were studied. The germanium atom is characterized by the octahedral configuration with the mutual cis-arrangement of the Cl and O atoms and trans-arrangement of the C atoms. The scheme of transformation of dichlorogermane 1 into the bis(chelate) cationic complex (L8CH2)2Ge(Cl)OTf (2) was proposed. The H-bonded complexes of dichlorogermane 1 with HOSO2CF3 and HCl assumed to be intermediates in this process were studied by quantum chemical calculation. The energy necessary for the dissociation of the H-bonded complexes to the germylium cation and HCl2 and СlHOSO2CF3 anions depends on the relative arrangement of the Cl atoms in the coordination polyhedron of the Ge atom. In the case of the cis-arrangement of the Cl atoms in the H-bonded complexes, the dissociation energy was estimated as 11.5—16.1 kcal mol–1.

Авторлар туралы

A. Korlyukov

A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences

Хат алмасуға жауапты Автор.
Email: alex@xrlab.ineos.ac.ru
Ресей, 28 ul. Vavilova, Moscow, 11991

E. Komissarov

A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences

Email: baukov.rgmu@mtu-net.ru
Ресей, 28 ul. Vavilova, Moscow, 11991

E. Kramarova

Russian State Medical University

Email: baukov.rgmu@mtu-net.ru
Ресей, 1 ul. Ostrovityanova, Moscow, 117997

A. Shipov

Russian State Medical University

Email: baukov.rgmu@mtu-net.ru
Ресей, 1 ul. Ostrovityanova, Moscow, 117997

Vad. Negrebetsky

Russian State Medical University

Email: baukov.rgmu@mtu-net.ru
Ресей, 1 ul. Ostrovityanova, Moscow, 117997

S. Bylikin

Russian State Medical University

Email: baukov.rgmu@mtu-net.ru
Ресей, 1 ul. Ostrovityanova, Moscow, 117997

Yu. Baukov

Russian State Medical University

Хат алмасуға жауапты Автор.
Email: baukov.rgmu@mtu-net.ru
Ресей, 1 ul. Ostrovityanova, Moscow, 117997

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