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

Alexander E. Miroslavov, Anna P. Shishkina, Georgy V. Sidorenko, Vladislav V. Gurzhiy, Daniil A. Maltsev, Ekaterina V. Kurysheva

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)9239-9243
Number of pages5
JournalInorganic Chemistry
Volume59
Issue number13
DOIs
StatePublished - 6 Jul 2020

Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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