메뉴 건너뛰기




Volumn , Issue 2, 2004, Pages 305-312

Two-electron reduction of alkyl(sulfanyl)porphyrazines: A route to free-base and peripherally metallated asymmetric porphyrazines

Author keywords

[No Author keywords available]

Indexed keywords

CALCULATIONS; COMPOSITION EFFECTS; ELECTRONS; HIGH TEMPERATURE EFFECTS; MOLECULAR STRUCTURE; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; REDUCTION; SODIUM COMPOUNDS; SUBSTITUTION REACTIONS;

EID: 0742301718     PISSN: 14779226     EISSN: None     Source Type: Journal    
DOI: 10.1039/B312495A     Document Type: Article
Times cited : (16)

References (45)
  • 39
    • 0000772847 scopus 로고    scopus 로고
    • ed. D. Demus, J. Goodby, G. W. Gray, H. W. Spiess and V. Vill, Weinheim, New York, Chichester, Brisbane, Singapore, Toronto; Wiley-VCH, New York; ch. XVI
    • Handbook of Liquid Crystals, ed. D. Demus, J. Goodby, G. W. Gray, H. W. Spiess and V. Vill, Weinheim, New York, Chichester, Brisbane, Singapore, Toronto; Wiley-VCH, New York, 1998, vol. 2B, ch. XVI, p. 945.
    • (1998) Handbook of Liquid Crystals , vol.2 B , pp. 945
  • 44
    • 0742326914 scopus 로고    scopus 로고
    • note
    • Note: Structure (b) has only one chlorine atom in the coordination sphere, whereas the second chlorine atom is at a distance of 3.024 Å from the Pt atom. At the B3LYP/SDD level of approximation, the structures (a) and (b) are nearly isoenergetic, but the use of the polarized 6-31G* basis set leads to a more evident separation in energy. This fact seems to be associated to basis set shortcomings. The lack of polarized basis functions on the negative charged chlorine atoms can induce a basis set superimposition error (BSSE). In the case of structure (b), the BSSE should be larger, because one chlorine atom is part of the external coordination sphere and is close to the methyl groups. This is a quite different spatial arrangement in comparison to structure (a), where the two chlorine atoms are part of the inner coordination sphere and a neutral sulfur atom (S2) is at 3.405 Å from the Pt atom. Structure (c) and structure (d) are square-based pyramidal five-coordinated structures with one chloride donor atom in axial position. As expected for Pt(II) complexes they are energetically by far less accessible in comparison to structure (a).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.