ISSN:
0009-2940
Keywords:
Transition metal hydrides
;
Oxidative addition reaction
;
Nitrosyl compounds
;
Iron complexes
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
d8 Iron Nitrosylhydride ComplexesThe nitrogen complex [(OC)2(Et3P)2Fe]2N2 (1) reacts with carboxylic acids to form the complexes (OC)2(Et3P)2Fe(H)OC(O)R [R=4-methoxyphenyl, 2a; R=2,4-dimethoxyphenyl, 2b; R=2,4,6-trimethoxyphenyl, 2c; R - Ph, 2d; R - CF3, 2e]. Treatment of 2 with N-methyl-N-nitroso-p-tolylsulfonamide produces the nitrosylcarboxylato complexes (OC)(ON)-(Et3P)2FeOC(O)R (3a - d) in addition to the side product Fe(NO)2(PEt3)2 (4) except for 2e which forms 4 exclusively. Reaction of 3 with LiAlH4 yields the hydridonitrosyliron complex (OC)(ON)(Et3P)2FeH (5a). A different synthetic route to the phosphorus donor-substituted iron hydride complexes involves starting material (OC)2(L)2FeCl2 [L=PEt3, 6a; L - PMe3, 6b; L=P(OiPr)3, 6c]. Compounds 6 react with tBuLi and NOBF4 to form (OC)(ON)L2FeCl (7). Subsequent treatment with NaBH4 gives (OC)(ON)(L)2FeH [L=PEt3, 5a; L=PMe3, 5b; L=P(OiPr)3, 5c]. The structures of 5b and 7a are determined by X-ray crystallography.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19911240408
