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Volumn 41, Issue 20, 2002, Pages 5255-5268

Phosphine and phosphonite complexes of a ruthenium(II) porphyrin. 1. Synthesis, structure, and solution state studies

Author keywords

[No Author keywords available]

Indexed keywords

5,15 BIS(3',5' DI TERT BUTYL)PHENYL 2,8,12,18 TETRAETHYL 3,7,13,17 TETRAMETHYLPORPHYRIN; BIS(DIPHENYLPHOSPHINO)ACETYLENE; DIETHYL(PHENYLACETENYL)PHOSPHONITE; DIPHENYL(PHENYLACETENYL)PHOSPHINE; LIGAND; METALLOPORPHYRIN; PHOSPHINE DERIVATIVE; PHOSPHONITE DERIVATIVE; PHOSPHORUS; PORPHYRIN; RUTHENIUM; TRIS(PHENYLACETENYL)PHOSPHINE; UNCLASSIFIED DRUG;

EID: 0037037495     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic025727y     Document Type: Article
Times cited : (34)

References (92)
  • 49
    • 0004150157 scopus 로고    scopus 로고
    • University of Göttingen: Göttingen, Germany
    • Sheldrick, G. M. SHELXS-97; University of Göttingen: Göttingen, Germany, 1997.
    • (1997) Shelxs-97
    • Sheldrick, G.M.1
  • 90
    • 0010585246 scopus 로고    scopus 로고
    • note
    • 60
  • 91
    • 0010619142 scopus 로고    scopus 로고
    • note
    • 31P): -180 ppm (free ligand), -121 ppm (mono-phosphine complex).
  • 92
    • 0010618435 scopus 로고    scopus 로고
    • note
    • 31P nucleus, but theoretically the chemical shift differences upon complexation cannot be assigned purely to electronic effects upon formation of the Ru-P bond, because the influence of the ring current of the aromatic porphyrin system also has to be taken into account. The binding site of a ligand to a metalloporphyrin is located in the strongly shielding region of the π-system of the porphyrin, leading to a significant upfield shift of the resonance of the respective nuclei. As judged from proton NMR spectroscopy, however, the solution state geometries of the complexes are almost identical in all cases. The relative positions of the phosphorus atoms vary by 0.06 Å along the Ru-P axis orthogonal to the porphyrin plane. We assume the influence of the bond length differences to be negligible, and the observed chemical shift differences to arise from the electronic effects of the different bond types and a constant upfield shift caused by the ring current of the aromatic ring system. This problem has not been addressed as such in previous studies.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.