ISSN:
0009-2940
Keywords:
Si - O Bond cleavage
;
Donor-acceptor interaction
;
P=O group
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Preparation and Structures of Some Intramolecular Donor-Acceptor Complexes with the Phosphoryl Group as DonorThe reaction of [2,2-diphenyl-1-(trimethylsiloxy)ethenyl]-dimethylphosphane oxide (1) with PF5 yields 2, involving hexacoordinated phosphorus, by cleavage of the Si-O bond and elimination of (CH3)3SiF. The same compound was formed in the reaction of 1 with RPF4 (R = dimethylamino, morpholino) by cleavage of the P-N bond and elimination of the corresponding silylated amine, R2NSiMe3. The reaction of 1 with F3B · OEt2 led to the intramolecular donor-acceptor-complex 3 with a tetracoordinated boron atom. The complex 4 with penta- (or hexa)coordinated tin was prepared by reaction of 1 with tin(IV) chloride with elimination of (CH3)3SiCl. X-ray structure analyses of 2 and 3 confirm the donor-acceptor interaction between the oxygen atom of the P=O group and the PF4 or BF2 group.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19931260802
