Substituted cyclopropanes. 4. cis-1,2,3-Tribromocyclopropane and hexabromocyclopropane
Abstract
<h2>Acta Crystallographica Section C</h2><h3>Crystal Structure Communications</h3><h3>0108-2701</h3> <h2>research papers (organic compounds)</h2> Volume 43 Part 6 Pages 1188-1192 June 1987 <h2>Substituted cyclopropanes. 4. cis -1,2,3-Tribromocyclopropane and hexabromocyclopropane</h2> G. Schrumpf and P. G. Jones 1188 Acta Cryst. (1987). C43, 1188-1192 Substituted Cyelopropanes. 4.* eis-1,2,3-Tribromoeyelopropane and Hexabromoeyelopropane BY GERD SCHRUMPF Institut fiir Organische Chemie der Universitdt, Tammannstrasse 2, D-3400 G&tingen, Federal Republic of Germany AND PETER G. JONES Institut fiir Anorganische Chemie der Universitdt, Tammannstrasse 4, D-3400 G6ttingen, Federal Republic of Germany (Received 7 July 1986; accepted 12 January 1987) Abstract. C3HaBr3, Mr -- 278.78, orthorhombic, Pnma, a=5.376 (2), b=9.921 (3), c= 11.662 (5)A, V= 621.9/~3, Z=4, Dx=2.98Mgm-a, 2(MoKa)= 0.71069 A, g(Mo Ka)= 19.1 mm-1, F(000) = 504, T= 293 K, R = 0.053 for 356 unique observed reflec- tions. CaHaBra is not isostructural with its trichloro analogue despite the fact that both crystallize in the same space group with imposed mirror symmetry. CaBr6, Mr = 515.49, monoclinic, P2t/c, a = 11.501(5), b=6.448(3), c=13.261(7)A, t= 112.39 (3)°, V= 909.4 A3, Z = 4, Dx= 3.76 Mg m-3, g(Mo Kct) = 26.2 mm-~, F(000) = 912, T- 293 K, R = 0.063 for 1034 unique observed reflections. C3Br6 is isostructural with CaC16. The