Photocatalytical decomposition of hydrazine in K-4[MO(CN)(8)] solution: X-ray crystal structure of (PPh4)(2)[Mo(CN)(4)O(NH3)]center dot 2H(2)O

摘要

Ligand-field photolysis of K-4[Mo(CN)(8)] center dot 2H(2)O in 98% N2H4 center dot H2O yields the catalytical decomposition of N2H4 into NH3 and N-2. From irradiated solutions of octacyanomolybdate(IV) both in NH3(aq) and 98% N2H4 center dot H2O(1) as solvents, the salt of the formula (PPh4)(2)[Mo(CN)(4)O(NH3)] center dot 2H(2)O was isolated. The salt is not formed by direct ligand replacement in tetracyanooxomolybdate(IV) ions derived from K3Na[Mo(CN)(4)O-2] center dot 6H(2)O as the solute in similar conditions. The X-ray crystal structure and spectral properties of (PPh4)(2)[Mo(CN)(4)O(NH3)] center dot 2H(2)O are described. The improved method of the synthesis of K-4[Mo(CN)(8)] center dot 2H(2)O is also presented. (c) 2006 Elsevier B.V. All rights reserved.