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Main Title: Kristallstruktur des Quecksilber(II)-Cryptats [Hg(cryptand 222)][{Hg(SCN)3}2] mit einem kettenförmigen Tri(thiocyanato)mercurat(II)-Anion
Translated Title: Crystal Structure of the Mercury(II) Cryptate [Hg(cryptand 222)][{Hg(SCN)3}2] Containing a Tri(thiocyanato)mercurate(II) Anion with a Chain Structure
Author(s): Pickardt, Joachim
Gong, Gill-Taik
Hoffmeister, Isabella
Type: Article
Language Code: de
Abstract: The reaction of [2.2.2]cryptand, 4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo- [8 .8 .8 ]hexacosane, with mercuric thiocyanate yields crystals of [Hg(cryptand 222 )][{Hg(SCN )3 }2]. The compound crystallizes monoclinically, space group C2/c, Z = 4, a = 2478.3(12), b = 1540.4(4), c = 1049.4(3) pm, β = 108.77(3)°. In the cation the mercury atom is 8 -coordinated by six oxygen and two nitrogen atoms with distances Hg -N 220(2) pm and Hg -O 268.8(9) pm (mean value). The polymeric anion consists of infinite chains -Hg -SCN -Hg - with bond distances Hg-S 254.2(4) and Hg-N 257(2) pm. Each Hg atom carries two additional terminal SCN ligands, with a mean Hg-S distance o f 244( 1) pm; the distance from Hg to the N atom of an SCN ligand of a neighbouring Hg atom is 300(2) pm, probably indicating an additional, although weak bonding.
Issue Date: 1995
Date Available: 10-Nov-2018
DDC Class: 540 Chemie und zugeordnete Wissenschaften
Subject(s): [2.2.2]cryptand
Mercury(II) complexes
crystal structure
Journal Title: Zeitschrift für Naturforschung B
Publisher: De Gruyter
Publisher Place: Berlin
Volume: 50
Issue: 7
Publisher DOI: 10.1515/znb-1995-0701
Page Start: 993
Page End: 996
EISSN: 1865-7117
ISSN: 0932-0776
Appears in Collections:Inst. Chemie » Publications

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