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Hydrolysis of Hexacarbonyltechnetium(I) Cation: Formation and Structure of Technetium Carbonyl Hydride 99Tc3H(CO)14

A. E. MiroslavovSt. Petersburg State University , , Universitetskaya nab. 7/9 , ,Anna P. ShishkinaSt. Petersburg State University , , Universitetskaya nab. 7/9 , ,Georgy V. SidorenkoKhlopin Radium Institute , 2nd Murinskii pr. 28 , ,Vladislav V. GurzhiySt. Petersburg State University , , Universitetskaya nab. 7/9 , ,Daniil A. MaltsevPetersburg Nuclear Physics Institute , mkr. Orlova roshcha 1 , ,Ekaterina V. KuryshevaKhlopin Radium Institute , 2nd Murinskii pr. 28 , ,

2020en

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ABI

Annotatsiya

Abstract Reaction of [99Tc(CO)6]ClO4 with alkali in aqueous solutions yields yellow 99Tc3H(CO)14 as the major product. On the other hand, [99TcH(CO)5] becomes the major product when the reaction with alkali is combined with the extraction into hexane. The molecular structure of 99Tc3H(CO)14, determined by SCXRD, is composed of the 99Tc2(CO)9 fragment bound to the 99Tc(CO)5 fragment via the hydrogen bridge and weak metal–metal bond. This compound crystallizes in the monoclinic system, space group P21/n, a = 9.6954(2) Å, b = 15.0985(3) Å, c = 14.5090(3) Å, and β = 104.925(2)°. 99Tc3H(CO)14 was additionally characterized by IR spectroscopy. The mechanism of hydrolysis of [99Tc(CO)6]ClO4 was suggested.

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DOI: 10.1021/acs.inorgchem.0c01145

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