Single-crystal polarized electronic spectra of the compounds dichlorotetrakis ([mu]-pivalato)dirhenium(III),tetra-n-butylammonium octachlorodirhenate(III), tetra-n-butylammonium octabromodirhenate(III), dimolybdenum(II)tetrapivalate, and the X-ray diffraction cyrstal structures of tetra-n-butylammonium octobromodirhenate(III) and two polymorphs of dimolybdenum(II) tetrapivalate

Abstract

Recommended Citation Huang, Hai-Wei, "Single-crystal polarized electronic spectra of the compounds dichlorotetrakis ([mu]-pivalato)dirhenium(III),tetran-butylammonium octachlorodirhenate(III), tetra-n-butylammonium octabromodirhenate(III), dimolybdenum(II)tetrapivalate, and the X-ray diffraction cyrstal structures of tetra-n-butylammonium octobromodirhenate(III) and two polymorphs of dimolybdenum(II) tetrapivalate " (1985). Retrospective Theses and Dissertations. 8704. https://lib.dr.iastate.edu/rtd/8704 EXPERIMENTAL 24 Preparation 24 Crystal Optics and Spectra 26 Polarization Ratios 37 Crystallographic Indexing 41 X-ray Data Collection and Structure Solution 42 General 42 [N(n-C^Hg)^]2Re2Brg 43 CN(n-C^Hg)^l2^e2Clg 45 Re2[02CC(CHg)^]^Cl2 46 The monoclinic crystals of E-MO^CO^CCCCHG)^)^ 46 The orthorhomhic crystals of Y-Mo2(02CC(CHg)g)^ 47 RESULTS AND DISCUSSION 50 Description of Crystal Structures 50 Structure of CN(n-C^Hg)^32^e2Brg 50 Structures of M02 (^2^^^ ""^3 ^3^4 57 Crystal Spectra 73 CN(n-C^Hg)^32Re2Clg 73 CN(n-C^Hg)^32^®2®^8 83 iii Comparison of (TEA)2Re2Clg and (TBA)2Re2Brg 96 Re2i:02CC(CH3)3D^Cl2 98 The monoclinic Mo2(02CC(CH3)g)^ 107 The orthorhombic MO2(^2^^^ ^^3 ^3^4 120