Hydrogen bond strength in chromates with krohnkite-type chains, K2Me(CrO4)2•2H2O (Me = Mg, Co, Ni, Zn, Cd)

被引：4

作者：

Stoilova, D. ^{[1
]}

Marinova, D. ^{[1
]}

Georgiev, M. ^{[2
]}

机构：

[1] Bulgarian Acad Sci, Inst Gen & Inorgan Chem, BU-1113 Sofia, Bulgaria

[2] Univ Chem Technol & Met, Dept Inorgan Chem, BU-1756 Sofia, Bulgaria

来源：

VIBRATIONAL SPECTROSCOPY | 2009年 / 50卷 / 02期

关键词：

Chromates with krohnkite-type chains; K2Me(CrO4)(2)center dot 2H(2)O (Me = Mg; Co; Ni; Zn; Cd); Infrared spectroscopy; Matrix-isolated HDO molecules; Hydrogen bond strength; Water librations; LATTICE VIBRATION-SPECTRA; WATER-MOLECULES; CRYSTAL-STRUCTURE; INORGANIC SOLIDS; SYSTEMS; MODES; MN; CU;

D O I：

10.1016/j.vibspec.2009.01.002

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Infrared spectra of the title compounds with krohnkite-type infinite octahedral-tetrahedral chains, K2Me(CrO4)(2)center dot 2H(2)O (Me = Mg, Co, Ni, Zn, Cd), are presented in the regions of the uncoupled O-D stretching modes of matrix-isolated HDO molecules (isotopically dilute samples) and water librations. The strengths of the hydrogen bonds are discussed in terms of the respective O-w ... O bond distances, the Me-water interactions (synergetic effect), the proton acceptor capability of the chromate oxygen atoms as deduced from Brown's bond valence sum of the oxygen atoms. The spectroscopic experiments reveal that hydrogen bonds of medium strength are formed in the chromates. The hydrogen bond strengths decrease in the order Cd > Zn > Ni > Co in agreement with the decreasing covalency of the respective Me-OH2 bonds in the same order, i.e. decreasing acidity of the water molecules. The infrared band positions corresponding to the water librations confirm the claim that the hydrogen bonds in K2Cd(CrO4)(2)center dot 2H(2)O are stronger than those formed in K2Mg(CrO4)(2)center dot 2H(2)O on one hand, and on the other-the hydrogen bonds in K2Ni(CrO4)(2)center dot 2H(2)O are stronger than those in K2Co(CrO4)(2)center dot 2H(2)O. (C) 2009 Elsevier B.V. All rights reserved

引用

页码：245 / 249

页数：5

共 50 条

[1] Comparative study on energetic distortions of SO42- ions matrix-isolated in compounds with krohnkite-type chains, K2Me(CrO4)2•2H2O and Na2Me(SeO4)2•2H2O (Me = Mg, Co, Ni, Zn, Cd)
Stoilova, D.
Marinova, D.
Wildner, M.
Georgiev, M.
[J]. SOLID STATE SCIENCES, 2009, 11 (12) : 2044 - 2050
[2] Vibrational behavior of SO42- guest ions included in K2Me(CrO4)2•2H2O (Me = Co, Ni) and crystal structures of K2Me(CrO4)2•2H2O (Me = Co, Ni)
Stoilova, D.
Georgiev, M.
Lengauer, C. L.
Wildner, M.
Marinova, D.
[J]. JOURNAL OF MOLECULAR STRUCTURE, 2009, 920 (1-3) : 289 - 296
[3] Infrared spectroscopic study of SO42- ions included in K2Me(CrO4)2•2H2O(Me = Mg, Cd) and crystal structure of K2Cd(CrO4)2•2H2O
Stoilova, D.
Wildner, M.
Marinova, D.
Georgiev, M.
[J]. JOURNAL OF MOLECULAR STRUCTURE, 2008, 889 (1-3) : 12 - 19
[4] Vibrational behavior of SO42- ions included in K2Zn(CrO4)2•2H2O and crystal structure of K2Zn(CrO4)2•2H2O: A new structure type containing krohnkite-type chains
Stoilova, D.
Wildner, M.
Marinova, D.
Georgiev, M.
[J]. JOURNAL OF MOLECULAR STRUCTURE, 2008, 892 (1-3) : 239 - 245
[5] Vibrational behavior of the S-O stretches in compounds with krohnkite-type chains Na2Me(SeO4)2•2H2O with matrix-isolated SO42- and Me′2+ guest ions (Me = Mn, Co, Ni, Cu, Zn, Cd)
Stoilova, D
Wildner, M
Koleva, V
[J]. VIBRATIONAL SPECTROSCOPY, 2003, 31 (01) : 115 - 123
[6] CRYSTAL-STRUCTURE STUDY OF ALUMINUM CHROMATES AND ALKALI CHROMATES - NAAL(CRO4)2,2H2O AND KAL(CRO4)2,2H2O
CUDENNEC, Y
RIOU, A
[J]. COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L ACADEMIE DES SCIENCES SERIE C, 1977, 284 (15): : 565 - 568
[7] NaIn(CrO4)2•2H2O, the first indium(III) member of the krohnkite family
Kolitsch, U
[J]. ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 2006, 62 : I35 - I37
[8] Third update on compounds with krohnkite-type chains:: the crystal structure of wendwilsonite [Ca2Mg(AsO4)2•2H2O] and the new triclinic structure types of synthetic AgSc(CrO4)2•2H2O and M2Cu(Cr2O7)2•2H2O(M = Rb, Cs)
Kolitsch, Uwe
Fleck, Michel
[J]. EUROPEAN JOURNAL OF MINERALOGY, 2006, 18 (04) : 471 - 482
[9] Crystal structures and crystal chemical relationships of krohnkite- and collinsite-type compounds Na2Me2+(XO4)2•2 H2O (X = S, Me = Mn, Cd; and X = Se, Me = Mn, Co, Ni, Zn, Cd) and K2Co(SeO4)2•2 H2O
Wildner, M
Stoilova, D
[J]. ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 2003, 218 (03): : 201 - 209
[10] Blodite-type compounds Na2Me(SO4)2•4H2O (Me = Mg, Co, Ni, Zn):: crystal structures and hydrogen bonding systems
Stoilova, D
Wildner, M
[J]. JOURNAL OF MOLECULAR STRUCTURE, 2004, 706 (1-3) : 57 - 63

← 1 2 3 4 5 →