摘要
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. Copyright © 1993 The Chemical Society Located in Taipei & Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim, Germany