Schwan, Karl-Christian and Timoskin, Alexey Y. and Zabel, Manfred and Scheer, Manfred (2006) Lewis base stabilized phosphanylborane. CHEMISTRY-A EUROPEAN JOURNAL, 12 (18). pp. 4900-4908. ISSN 0947-6539,
Full text not available from this repository. (Request a copy)Abstract
The abstraction of the Lewis acid from [W(CO)(5)(PH2BH2-NMe3)] (1) by an excess of P(OMe3)(3) leads to the quantitative, formation of the first Lewis base stabilized monomeric parent compound of phosphanylborane [H2PBH2-NMe3] 2. Density functional theory (DFT) calculations have shown a low energetic difference between the crystallographically determined anti-periplanar arrangement of the lone pair and the trimethylamine group relative to the P-B core and the synperi-planar conformation. Subsequent reactions with the main-group Lewis acid BH3 as well as with an [Fe(CO),] unit as a transition-metal Lewis acid led to the formation of [(BH3)(PH2BH2NMe3)-N-.] (3), containing a central H3B-PH2-BH2 unit, and [Fe(CO)(4)-(PH2BH2-NMe3)] (4), respectively. In oxidation processes with O-2, Me3NO, elemental sulfur, and selenium, the boranylphosphine chalcogenides [H2P(Q)(BH2NMe3)-N-.] (Q = S 5b; Se 5c) as well as the novel boranyl phosphonic acid [(HO)(2)P(O)BH2-NMe3] (6a) are formed. All products have been characterized by spectroscopic as well as by single-crystal X-ray structure analysis.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | EFFECTIVE CORE POTENTIALS; PHOSPHORUS-BORON BONDS; MOLECULAR CALCULATIONS; CATALYZED FORMATION; CONJUGATE BASE; BORYLPHOSPHINE; DERIVATIVES; PHOSPHINES; CHAINS; ROUTE; boron; density functional calculations; Lewis bases; phosphorus |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 11 Feb 2021 13:10 |
| Last Modified: | 11 Feb 2021 13:10 |
| URI: | https://pred.uni-regensburg.de/id/eprint/34447 |
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