Structural study of phosphorus-containing butadienes. 3. Molecular and crystal structure of the dibromoneopentylglycol and bis-1,3,5-tribromophenyl esters of 3,4-dichloro-1,2-butadiene-2-phosphonic acid

Author(s):  
V. E. Shklover ◽  
V. I. Petrov ◽  
Yu. T. Struchkov
1986 ◽  
Vol 41 (5) ◽  
pp. 548-552 ◽  
Author(s):  
Karl-Friedrich Tebbe ◽  
Magda Fehér

Abstract The structure of P12(iPr)4, C12H28P12 , has been determined by single crystal X-ray techniques (Rf = 0.026, wRf = 0.029 for 3549 observed reflections with |Fo| ≥ 4σ(Fo)). The compound crystallizes in the triclinic space group P1 with a = 879.8, b = 1088.5, c = 1414.1 pm, α = 93.01, β - 107.61, γ = 92.92° and Z = 2. The molecule contains a polycyclic P12-unit of nearly C2v symmetry, which represents an essential structural unit of Hittorf’s phosphorus.


1981 ◽  
Vol 36 (10) ◽  
pp. 1208-1210 ◽  
Author(s):  
Hartmut Köpf ◽  
Joachim Pickardt

Abstract The molecular structure of the bridged [1]-titanocenophane 1,1'-dimethylsilylene titanocene dichloride, (CH3)2Si(C5H4)2TiCl2, has been investigated by an X-ray structure determination. Crystal data: monoclinic, space group C2/c, Z = 4, a = 1332.9(3), 6 = 988.7(3), c = 1068.9(3) pm, β = 113.43(2)°. The results are compared with the structural dimensions of similar compounds: 1,1'-methylene titanocene dichloride, CH2(C5H4)TiCl2, with the unbridged titanocene dichloride, (C5H5)2TiCl2 and the ethylene-bridged compound (CH2)2(C5H4)2TiCl2


Sign in / Sign up

Export Citation Format

Share Document