Cobalt (III) Complexes with (R) - 1, 2-Diaminopropane and Its Derivatives

Author

Christopher John Rudy

Date of Award

12-1985

Degree Name

Master of Arts

Department

Chemistry

First Advisor

Dr. Dean W. Cooke

Second Advisor

Dr. Joseph Kanamueller

Third Advisor

Dr. Ralph K. Steinhaus

Access Setting

Masters Thesis-Open Access

Abstract

(R)-1, 2-Diethylaminopropane (N,N' -Etlpn) was prepared by LialH₄ reduction of (R)-1-2-diacetamidopropane (m.p. 153.5°C). The [∝]_D of N, N'-Melpn and N,N'-Etlpn was related to that of 1pn and was concentration dependent. (R)-1, 2-Dibenzylaminopropane was prepared. Complexes of trans, trans- and trans, cis-dinitrobis ((R)- 1, 2-diethylaminopropane) cobalt (III) were perpared. The hexadecadal rule was used to help assign the nitro oxygens of the complexes to sectors adjacent to the axial amine hydrogens and within the boundaries of the λ- chelate rings. The CD spectra was solvent dependent. The instability of trans-[Co (III)N₄X₂]⁺ complexes was related to the ammonia or 1,2-diamine ligand (N, N'B zlpn > N, N ' - Etlpn > N,N1- Eten > N, N' -Melpn > N,N'-Meen > NH₃ >lpn), the trans-X groups ( Cl> Br> N0₂) and the counterion (C1> Br; C10₄; NO₂) and the counterion (C1>Br; C10₄; NO₃). NH₄[Co(III)-(NH₃)₂(1,2-diamine)(S0₃)₂] complexes were prepared, and trans-[Co (III)(NH₃)₂(1pn) Br₂] Br and trans-[Co(III)(NH₃)₂- (1pn)Cl₂]Cl were prepared from NH₄[Co(III)(NH₃)₂(lpn)-(S0₃)₂] using HBr or HCl.

Recommended Citation

Rudy, Christopher John, "Cobalt (III) Complexes with (R) - 1, 2-Diaminopropane and Its Derivatives" (1985). Masters Theses. 1453.
https://scholarworks.wmich.edu/masters_theses/1453