- 作者: 許拱北 ; 張秋金 ; 王瑜等
- 作者服務機構: 成功大學化學系
- 中文摘要: The title compound crystallizes in space group P 2/sub 1/c of the monoclinic system in a cell of dimensions: a = 9.231(2), b = 15.931(2), c = 12.420(2).ANG.,.beta.=108.37 (1).degree. The observed density is 1.60 g/cm/sup 3/ and the density calculated for four molecules in the cell is 1.58 g/cm/sup 3/. The refinement converged with R = 0.029 and R/sub W/ = 0.028 based on 2569 reflections with I > 2.5 .sigma.. The molecule has approximate C/sub s/ symmetry with a mirror plane roughly containing the central Mo atom and two cis-carbonyls, C(1)O(1) and C(4)O(4), while bisecting the bidentate, H/sub 2/CPz/sub 2/, and two trans-carbonyls. The four carbonyls and the bidentate adopt a quasi-octahedral arrangement around the Mo atom. The C(NN)/sub 2/Mo linkage of the (H/sub 2/CPz'/sub 2/)Mo fragment is observed to be in the boat form. The two cis-carbonyls are bent away by the bulky H/sub 2/CPz'/sub 2/ bidentate giving .ANGLE. C(1)-Mo-C(4) = 167.3(1).degree..The distortion explains the facile allyl bromination and decarbonylation observed for the title compound.
- 英文摘要: --
- 中文關鍵字: Structural Characterization; Cis-Tetracarbonyl(3.5- Dimethylpyrazol-1-Yl) Methanemolybdenum(0)
- 英文關鍵字: 結構特性;順式四羰基(3.5-二甲基-1-唑基)甲基鉬(0)