| dc.contributor.author | Macdonald, Charles Lloyd Bergstrom. | en_US |
| dc.date.accessioned | 2014-10-21T12:38:23Z | |
| dc.date.available | 1998 | |
| dc.date.issued | 1998 | en_US |
| dc.identifier.other | AAINQ36587 | en_US |
| dc.identifier.uri | http://hdl.handle.net/10222/55600 | |
| dc.description | This work examines the concepts of steric and electronic stabilization and provides a rationale for their application to the structure and bonding of group 15 (Pnictogen) elements. | en_US |
| dc.description | Synthetic and ab initio studies demonstrate that electronic factors determine the bonding of pnictogenium cations (group 15 carbenoids) and suggest that the dimerization of arsenium cations is a solid-state packing phenomenon. The contrasting cycloaddition reactivity of phosphenium and arsenium cations is explained. The 2,4,6-tris(trifluoromethyl)phenyl (Fmes) substituent is not suitable for the stabilization of pnictogenium cations. | en_US |
| dc.description | Identical reactions involving the bulky 2,4,6-tri-tbutylphenyl (Mes*) and slightly smaller 2,6-diisopropylphenyl (Dip) ligands yield either trisaminopnictines, pnictazanes or iminoaminopnictines depending on the pnictogen atom. A steric scale of relative thermodynamic stability for the structure and bonding of compounds containing the N-Pn-N (Pn = P, As, Sb, Bi) moiety is formulated. | en_US |
| dc.description | Study of the unprecedented dimerization of Mes*N=P-OSO2CF 3 yields a qualitative assessment of kinetic and thermodynamic effects of bulky substituents. Reagents that allow for the synthesis of compounds containing the [Mes*N=As] fragment are described. These will allow for the development of a new chapter of main group inorganic chemistry.1 | en_US |
| dc.description | 1Please refer to dissertation for diagram. | en_US |
| dc.description | Thesis (Ph.D.)--Dalhousie University (Canada), 1998. | en_US |
| dc.language | eng | en_US |
| dc.publisher | Dalhousie University | en_US |
| dc.publisher | | en_US |
| dc.subject | Chemistry, Inorganic. | en_US |
| dc.subject | Chemistry, Physical. | en_US |
| dc.title | Steric and electronic control of low-coordinate pnictogen bonding. | en_US |
| dc.type | text | en_US |
| dc.contributor.degree | Ph.D. | en_US |
