Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Two Modifications of Y2Piv6(Hpiv)6 crystals: Synthesis and structures

Two Modifications of Y2Piv6(Hpiv)6 crystals: Synthesis and structures Crystals of two modifications of yttrium pivalate solvate Y2Piv6(HPiv )6(HPiv = (CH3)3CCOOH) are synthesized and studied by single-crystal X-ray diffraction analysis. The 3α-modification crystallizes in the monoclinic system, a = 16.394(2) Å, b = 11.948(4) Å, c = 20.352(3) Å, β = 108.73(3)°, Z = 4, space group P21/n, R 1 = 0.105. Crystals of the β-modifications are also monoclinic, a = 21.617(4) Å, b = 36.559(4) Å, c = 29.930(4) Å, β = 104.40(2)°, Z = 12, space group P21/c, R 1 = 0.050. The molecular structures of crystals of the α-and β-modifications consist of the Y2(μ2-Piv)4(Piv)2(HPiv)6 dimers. The Y atoms with a distorted antiprismatic coordination surrounding of the O atoms (Y-O 2.23–2.53 Å) are linked by four bridging bidentate pivalate anions and form the structural fragment shaped into a distorted lantern. Monodentate Hpiv molecules participate in the formation of intramolecular hydrogen bonds with Piv ligands. Crystal structures of the α-and β-modifications differ in packing of the Y2Piv6(HPiv)6 dimers and in centrosymmetric nature of the dimers in the structure of the α-modification. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Coordination Chemistry Springer Journals

Two Modifications of Y2Piv6(Hpiv)6 crystals: Synthesis and structures

Loading next page...
 
/lp/springer_journal/two-modifications-of-y2piv6-hpiv-6-crystals-synthesis-and-structures-tDUi0D6gvL

References (8)

Publisher
Springer Journals
Copyright
Copyright © 2006 by Pleiades Publishing, Inc.
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry
ISSN
1070-3284
eISSN
1608-3318
DOI
10.1134/S1070328406010106
Publisher site
See Article on Publisher Site

Abstract

Crystals of two modifications of yttrium pivalate solvate Y2Piv6(HPiv )6(HPiv = (CH3)3CCOOH) are synthesized and studied by single-crystal X-ray diffraction analysis. The 3α-modification crystallizes in the monoclinic system, a = 16.394(2) Å, b = 11.948(4) Å, c = 20.352(3) Å, β = 108.73(3)°, Z = 4, space group P21/n, R 1 = 0.105. Crystals of the β-modifications are also monoclinic, a = 21.617(4) Å, b = 36.559(4) Å, c = 29.930(4) Å, β = 104.40(2)°, Z = 12, space group P21/c, R 1 = 0.050. The molecular structures of crystals of the α-and β-modifications consist of the Y2(μ2-Piv)4(Piv)2(HPiv)6 dimers. The Y atoms with a distorted antiprismatic coordination surrounding of the O atoms (Y-O 2.23–2.53 Å) are linked by four bridging bidentate pivalate anions and form the structural fragment shaped into a distorted lantern. Monodentate Hpiv molecules participate in the formation of intramolecular hydrogen bonds with Piv ligands. Crystal structures of the α-and β-modifications differ in packing of the Y2Piv6(HPiv)6 dimers and in centrosymmetric nature of the dimers in the structure of the α-modification.

Journal

Russian Journal of Coordination ChemistrySpringer Journals

Published: Feb 13, 2006

There are no references for this article.