Izvorni znanstveni članak

Synthesis and Crystal Structure of Tetraethylammonium Di-μ-fluoro-bis[aquadifluoro-oxovanadate(IV)]

Alojz Demšar ; Department of Chemistry, E. Kardelj University, Murnikova 6 61001 Ljubljana, Yugoslavia
Peter Bukovec ; Department of Chemistry, E. Kardelj University, Murnikova 6 61001 Ljubljana, Yugoslavia

Sažetak

The title complex, [NEt4h [V202F6(H20h], has been isolated
from an aqueous solution of VOF2 and [NEt4]F. The crystal stru..:.
cture has been determined from threedimensional counter X-ray
data. It crystallizes in the monoclinic space group P21/n with
a = 708.8(1), b = 1316.6(2), c = 1362.4(2) pm, p = 97.58(1)0 and Z = 2.
Least-squares refinement of the structure based on 1523 observations
led to final discrepancy indices of R = 0.058 and Rw =
= 0.067. The structure consists of discrete dinuclear u11l:ci
[V202F5(H20h]2- with a crystallogra units are linked into chains by hydrogen bonds [O-H ... F 259.1(5)
and 267.9(5) pm]. The geometry around vanadium is distorted octahedral
with V-F distances from 192.0(4) to 220.9(3) pm, V-0
159.4(4) pm, V-OH2 208.3(4) pm, V-V 332.8(1) pm, and V-F-V
106.0(2)0

Ključne riječi

Hrčak ID:

194137

URI

https://hrcak.srce.hr/194137

Datum izdavanja:

20.10.1984.

Posjeta: 511 *