Oligomeric tetrahedral anions in borophosphates: Six-membered rings with open and cyclic phosphate branchings in the crystal structure of K6Cu2[B4P8O28(OH)(6)]

Authors
Boy, I Cordier, G Kniep, R
Citation
I. Boy et al., Oligomeric tetrahedral anions in borophosphates: Six-membered rings with open and cyclic phosphate branchings in the crystal structure of K6Cu2[B4P8O28(OH)(6)], Z NATURFO B, 53(12), 1998, pp. 1440-1444
Citations number
7
Categorie Soggetti
Chemistry
Journal title
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
ISSN journal
09320776 → ACNP
Volume
53
Issue
12
Year of publication
1998
Pages
1440 - 1444
Database
ISI
SICI code
0932-0776(199812)53:12<1440:OTAIBS>2.0.ZU;2-I
Abstract
Crystals of K6Cu2[B4P8O28(OH)(6)]were grown under hydrothermal conditions a t 160 ?C. The crystal structure (monoclinic. P 2(1)/c (Nr. 14), a = 961.8(1 ), b = 1755.0(1), c = 942.0(1) pm, beta = 112.29(1)?, Z = 2) contains oligo meric tetrahedral anions based on six-membered rings {B4P2O10O8/2} with add itional branchings by hydrogen phosphate-groups (open branching: 4 x HPO3O1 /2; cyclic branching: 2 x HPO2O2/2). The complex borophosphate anion is rep resented by the formula [B4P8O28(OH)(6)](10-). Cu2+ is in a tetragonal pyra midal and K+ in an irregular coordination by eight and nine oxygen ligands, respectively.