STRUCTURAL STUDIES OF (PT-C5H5)2MX2 COMPLEXES AND THEIR DERIVATIVES - STRUCTURE OF 1,1'-TRIMETHYLENEDICYCLOPENTADIENYL-DICHLOROZIRCONIUM Academic Article uri icon

abstract

  • 1,1Trimethylene--dicyclopentadienedichlorozirconium, (CH2)3(C5H4)2- ZrCl2, is orthorthombic, space group Pbca. The unit cell dimensions found were a = 8.277(2), b = 13.922(4), c = 22.568(5), Z = 8. The strucutre was determined from three-dimensional X-ray data (1049 independent reflection) refined to an R facotr of 2.64%. The coordination about the zirconium atom is that of the a distorted tetrahedron comprised of the chlorine atoms and the centroids of the -cyclopentadienyl rings. The ClsZrCl bond angle is 96.92(7) and the centroid Zrcentroid angle 129.5. The ZrCl bond distances found are 2.451(2) and 2.431(2) which are very close to the sum of the Paulling radii. Zirconiumring centroid distances are 2.192 and 2.193 and the range of ZrC distances is 2.4772.516 . The carboncarbon distances within the -cyclopentadiene rings verage 1.395(10) and range from 1.363(9) to 1.413(9) . These values establish the Pentahapto nature of the metalring bonding. 1974.

published proceedings

  • JOURNAL OF ORGANOMETALLIC CHEMISTRY

author list (cited authors)

  • SALDARRI, C. H., CLEARFIE, A., & BERNAL, I.

citation count

  • 29

complete list of authors

  • SALDARRI, CH||CLEARFIE, A||BERNAL, I

publication date

  • October 1974