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Volumn 100, Issue 30, 1996, Pages 12241-12252

Structured electron transfer transition state. Valence bond configuration mixing analysis and ab initio calculations of the reactions of formaldehyde radical anion with methyl chloride

Author keywords

[No Author keywords available]

Indexed keywords

CALCULATIONS; CHARGE TRANSFER; CHEMICAL REACTIONS; IONS; MOLECULAR DYNAMICS; ORGANIC COMPOUNDS;

EID: 0030198151     PISSN: 00223654     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp952827z     Document Type: Article
Times cited : (47)

References (72)
  • 13
    • 0010462768 scopus 로고
    • Patai, S., Ed.; John Wiley: New York
    • (a) Bilkis, I. I. In The Chemistry of Acid Derivatives; Patai, S., Ed.; John Wiley: New York, 1992; Vol. 2, p 1639.
    • (1992) The Chemistry of Acid Derivatives , vol.2 , pp. 1639
    • Bilkis, I.I.1
  • 27
    • 0000974690 scopus 로고
    • (b) For closed shell species the ET-TS is enforced to be outer-sphere; see: (a) Shaik, S. S. Acta Chem. Scand. 1990, 44, 205.
    • (1990) Acta Chem. Scand. , vol.44 , pp. 205
    • Shaik, S.S.1
  • 34
    • 2642704123 scopus 로고
    • Int. Ed. Engl. 1995, 34, 1495.
    • (1995) Int. Ed. Engl. , vol.34 , pp. 1495
  • 37
    • 85033039949 scopus 로고    scopus 로고
    • note
    • Weakly bonded (outer-sphere) ET-TSs may certainly be found. Our recent study of radical cation reactivity (ref 14a) shows that these outer-sphere ET-TSs are generally higher in energy than their bonded analogs. The present study focuses on the bonded TSs, which are interesting from the points of view of bonding principles and the general aim of the paper.
  • 54
    • 85033049033 scopus 로고    scopus 로고
    • note
    • 3 radical will most likely couple with the reactant anion radical, which at least initially is present in excess. See ref 4 above.
  • 55
    • 85033034587 scopus 로고    scopus 로고
    • note
    • We have also inspected the projected frequencies orthogonal to the IRC (using iop(7/45=1) in GAUSSIAN-92, as advised by Schlegel, H. B). The combination of the projected and unprojected modes allowed us to ascertain the changes in the modes discussed in Figure 6.
  • 56
    • 85033059134 scopus 로고    scopus 로고
    • note
    • •. Thus, the extra electron on formaldehyde anion radical lies on the O center, and as such the O center might have been considered as the effective electron donor site.
  • 62
    • 0000988760 scopus 로고
    • ‡ = fG - B (G is the vertical gap in the avoided crossing diagram, f is the fraction of G that enters under the crossing point, and B is the avoided crossing resonance energy). Since SUB(C) possesses a preferred thermodynamic factor, its respective/value is smaller that that for the ET reaction, which in contrast has a smaller G value. In such a situation it is shown that when G is small, ET will possess the smaller barrier, and vice versa when G is large.
    • (1985) Prog. Phys. Org. Chem. , vol.15 , pp. 197
    • Shaik, S.S.1
  • 69
    • 85033058010 scopus 로고    scopus 로고
    • note
    • -. In fact, this increase in the spin density on the oxygen atom at the ET-TS relative to the CR cluster is apparent in all the population analyses used, at all the possible levels studied here.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.