Mononuclear transition metal adamantane-1-carboxylates


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A procedure was developed for the synthesis of mononuclear first row transition metal coordination compounds with adamantane-1-carboxylate (AdCO2), which allowed the synthesis of complexes NBu4[M(AdCO2)3], where MII = Mn, Ni, Co, Zn. The X-ray diffraction study showed that all AdCO2 act as chelating ligands, which is the main distinguishing structural feature of the synthesized compounds. The formation of four-membered metallocycles leads to a small O—M—O angle (58.4–63.0°), resulting in the distorted trigonal-prismatic environment of the central atom in the coordination anions [M(AdCO2)3]. Under similar conditions of the synthesis, CuII forms the complex (NBu4)2[Cu(AdCO2)2(SO4)] existing in two differently colored modifications (green and light blue), which is due to a small difference in the environment of CuII in the solid state. Upon heating above 150°C, the light blue modification is transformed into the green modification. Using 1,3-diphenyltriazene (HL), it was demonstrated that the developed synthetic approach is applicable to the preparation of compounds, in which the coordination anions [ML3] also contain only four-membered chelate metallocycles with the N—M—N angle tightened at the metal atom. The compounds NBu4[ML3], where MII = Co and Ni, were isolated in individual state and were structurally characterized.

作者简介

E. Fursova

International Tomography Center, Siberian Branch of the Russian Academy of Sciences

Email: Victor.Ovcharenko@tomo.nsc.ru
俄罗斯联邦, 3a ul. Institutskaya, Novosibirsk, 630090

G. Romanenko

International Tomography Center, Siberian Branch of the Russian Academy of Sciences

Email: Victor.Ovcharenko@tomo.nsc.ru
俄罗斯联邦, 3a ul. Institutskaya, Novosibirsk, 630090

S. Tolstikov

International Tomography Center, Siberian Branch of the Russian Academy of Sciences

Email: Victor.Ovcharenko@tomo.nsc.ru
俄罗斯联邦, 3a ul. Institutskaya, Novosibirsk, 630090

V. Ovcharenko

International Tomography Center, Siberian Branch of the Russian Academy of Sciences

编辑信件的主要联系方式.
Email: Victor.Ovcharenko@tomo.nsc.ru
俄罗斯联邦, 3a ul. Institutskaya, Novosibirsk, 630090

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