CHEMISTRY OF POLYFUNCTIONAL MOLECULES .11 2. RING ENLARGEMENT REACTIONS OF A SPIROCYCLIC COBALTAPHOSPHAZENE WITH OXYGEN, SULFUR, AND SELENIUM

Authors
ELLERMANN J SUTTER J KNOCH FA MOLL M
Citation
J. Ellermann et al., CHEMISTRY OF POLYFUNCTIONAL MOLECULES .11 2. RING ENLARGEMENT REACTIONS OF A SPIROCYCLIC COBALTAPHOSPHAZENE WITH OXYGEN, SULFUR, AND SELENIUM, Chemische Berichte, 127(6), 1994, pp. 1015-1020
Citations number
23
Categorie Soggetti
Chemistry
Journal title
Chemische Berichte → ACNP
ISSN journal
00092940
Volume
127
Issue
6
Year of publication
1994
Pages
1015 - 1020
Database
ISI
SICI code
0009-2940(1994)127:6<1015:COPM.2>2.0.ZU;2-J
Abstract
The spirocyclic cobaltaphosphazene 1 which contains cobalt-connected t hree-, five-, and six-membered rings undergoes ring enlargement reacti ons by treatment with O2, S8, and Se8. The resulting paramagnetic spir ocyclic cobalta-phosphazenoids 2a-c (E = O, S, Se) consist of eight-me mbered chelate rings connected at the spiro-cobalt(II) centre forming a tetrahedral CoE4 core. The compounds 2a-c have been characterized by X-ray analyses, H-1, C-13{H-1}, P-31{H-1} NMR, IR, Raman, UV/Vis/NIR, EI/FD mass spectroscopy, and magnetic measurements.