LOW-TEMPERATURE STRUCTURE AND MAGNETIC-PROPERTIES OF TETRAPHENYLARSONIUM TETRACHLORONITRIDOTECHNETATE(VI)

Authors
FIGGIS BN REYNOLDS PA LARSEN FK WILLIAMS GA DELFS CD
Citation
Bn. Figgis et al., LOW-TEMPERATURE STRUCTURE AND MAGNETIC-PROPERTIES OF TETRAPHENYLARSONIUM TETRACHLORONITRIDOTECHNETATE(VI), Australian Journal of Chemistry, 49(5), 1996, pp. 633-637
Citations number
19
Categorie Soggetti
Chemistry
Journal title
Australian Journal of Chemistry → ACNP
ISSN journal
00049425
Volume
49
Issue
5
Year of publication
1996
Pages
633 - 637
Database
ISI
SICI code
0004-9425(1996)49:5<633:LSAMOT>2.0.ZU;2-R
Abstract
The crystal structure of [AS(C6H5)(4)] [TcNCl4] was determined at 120 K by X-ray diffraction and at 28 K by neutron diffraction. The crystal s are tetragonal, space group P4/n, with a 1260 . 4(3) and c 773 . 2(2 ) pm at 120 K. The [TcNCl4](-) anion possesses exact C-4 upsilon symme try, with Tc=N distances of 160 . 3(2) and 162 . 5(4) pm at 120 and 28 K respectively. Magnetic susceptibilities were measured on single cry stals from 300 to 4 . 5 K. The results indicate a well behaved S 1/2 s ystem following the Curie-Weiss law with theta -0 . 13 K.