Premium
Darstellung und Eigenschaften von Chromtricarbonyl‐Komplexen strukturisomerer Borazin‐Derivate
Author(s) -
Scotti Mario,
Werner Helmut
Publication year - 1974
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19740570434
Subject(s) - chemistry , borazine , chromium , medicinal chemistry , ligand (biochemistry) , stereochemistry , organic chemistry , biochemistry , receptor , boron nitride
The new hexaalkylborazine chromium tricarbonyls ( n ‐Pr) 3 B 3 N 3 Me 3 Cr(CO) 3 (V), Me 3 B 3 N 3 ( n ‐Pr) 3 Cr(CO) 3 (VI), ( i ‐Pr) 3 B 3 N 3 Me 3 Cr(CO) 3 (VII) and Me 3 B 3 N 3 ( i ‐Pr) 3 Cr(CO) 3 (VIII) have been prepared from fac ‐Cr(CO) 3 (MeCN) 3 and the corresponding borazine in dioxane or without solvent. They are much more labile than the isomeric complex Et 3 B 3 N 3 Et 3 Cr(CO) 3 (IV) which can be readily obtained from Et 3 B 3 N 3 Me 3 Cr(CO) 3 and Et 3 B 3 N 3 Et 3 by ring ligand exchange. The NMR., IR., UV. and Mass spectroscopic data of the complexes IV–VIII will be briefly discussed. The preparation of the borazine derivatives ( n ‐Pr) 3 B 3 N 3 Me 3 (IX) and Me 3 B 3 N 3 ( n ‐Pr) 3 (X) is also reported.