1. School
of Chemistry, University of Hyderabad, Central University P.O., Prof. C.
R. Rao Road, Hyderabad 500 046, India
2. Novosibirsk State University, 2 Pirogov
str., 630090 Novosibirsk, Russian Federation
3. Institute of Solid State Chemistry and Mechanochemistry SB RAS, 18 Kutateladze, 630128 Novosibirsk, Russian Federation