US EPA

4322999 

Journal Article 

Unusual formations of superoxo heptaoxomolybdates from peroxo molybdates 

Chen, QL; Zhou, ZHui 

2016 

Yes 

Inorganic Chemistry Communications
ISSN: 1387-7003 

67 

95-98 

10.1016/j.inoche.2016.03.015 

WOS:000375629100023 

Two novel dioxygen heptaoxomolybdates K-5[Mo7O22(O-2)(OH)]Cl center dot 6H(2)O (1) and K-5[Mo7O22(O-2)(O-2)]center dot 8H(2)O (2) were isolated from the solution of peroxo molybdate accidently. The solids were characterized by IR, EPR and X-ray single crystal analysis. Complex 1 contains a superoxo group with a short bond distance 1.27(1) angstrom, while 2 is a mixed complex with peroxo and superoxo groups [1.43(1),1.27(1) angstrom]. All of the dioxygen groups coordinate to molybdenum atoms in side-on (eta(2)) fashion. The two complexes are short-lived and will decompose into peroxo molybdates K-5[Mo7O21(O-2)(2)(OH)]center dot 6H(2)O (3) and K-6[Mo7O22(O-2)(2)]center dot 9H(2)O (4) very quickly. (C) 2016 Elsevier B.V. All rights reserved. 

Molybdate; Superoxo; Peroxo; Hydrogen peroxide; Catalysis