Hydrothermal synthesis and structure of a new helical chain constructed from only molybdenum-oxide building blocks.

Journal Article (Journal Article)

The compound [NH(3)(CH(2))(2)NH(2)(CH(2))(2)NH(3)](2)[Mo(9)O(30)] was synthesized at 170 degrees C via hydrothermal techniques from the starting materials of Na(2)MoO(4).H(2)O, NH(2)(CH(2))(2)NH(CH(3))(2)NH(2), and H(2)O. The compound crystallizes in the space group C2/c of the monoclinic system with a = 21.308(4) A, b = 9.234(2) A, c = 19.195(4) A, beta = 120.27(3) degrees, V = 3261.9(11)A(3), Z = 4. Two novel and symmetrically related helices coexist in the centrosymmetric solid, in which the two kinds of helices appear in the left-handed and right-handed enantiomorphs, respectively. This is the first example of a helical chain structure consisting of only molybdenum-oxide building blocks. The central axis about each helical chain is a 2-fold screw axis.

Full Text

Duke Authors

Cited Authors

  • Xu, L; Qin, C; Wang, X; Wei, Y; Wang, E

Published Date

  • November 17, 2003

Published In

Volume / Issue

  • 42 / 23

Start / End Page

  • 7342 - 7344

PubMed ID

  • 14606819

International Standard Serial Number (ISSN)

  • 0020-1669

Digital Object Identifier (DOI)

  • 10.1021/ic034331z


  • eng

Conference Location

  • United States