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Reactivity of fac ‐[PPN][Fe(CO) 3 (TePh) 3 ]: Structure of Fe 2 (μTePh) 2 (NO) 4
Author(s) -
Liaw WenFeng,
Homg YihChern,
Ou DerShiaw,
Lee GeneHsiang,
Peng ShieMing
Publication year - 1993
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199300057
Subject(s) - chemistry , crystallography , orthorhombic crystal system , bond length , dimer , rhombus , stereochemistry , crystal structure , organic chemistry , geometry , mathematics
Addition of NOBF 4 to fac ‐[PPN][Fe(CO) 3 (TePh) 3 ] in THF at ambient temperature results in formation of Fe 2 (μ‐TePh) 2 (NO) 4l Fe 2 (−TePh) 2 (CO) 6 and organic products. Methylation of fac ‐[PPN][Fe(CO) 3 ‐ (TePh) 3 ] by Mel or [Me 3 O][BF 4 ] leads to the known dimer Fe 2 (μ.‐TePh) 2 (CO) 6 and organic products. Fe 2 (μ‐TePh) 2 (NO) 4 crystallizes in the orthorhombic space group P bca, with a = 12.701(5) Å, b = 6.7935(16) Å, c = 21.299(9) Å, V = 1837.8(11) Å 3 , and Z = 4. The core geometry of Fe 2 (μ‐TePh) 2 (NO) 4 is best described as a Fe 2 Te 2 planar rhombus with Te‐Fe‐Te bond angle 112.09(4)°. A Fe‐Fe bond (length 2.827(2) Å) is proposed for Fe 2 (μ‐TePh) 2 (NO) 4 on the basis of the 18‐electron rule. The iron atom adopts a distorted tetrahedral geometry with acute bridge Fe‐Te‐Fe angles 67.91(3)°, and bridging Fe‐Te bond of length 2.53(1) Å.