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Volumn , Issue 24, 2003, Pages 4618-4625

Novel molybdenum(V) squarato complexes based on the dinuclear metal-metal bonded unit: Syntheses and structural characterization of dinuclear [Mo2O4(C4O4)(R-Py)4] and tetranuclear [Mo4O8(C4 O4)4]4-

Author keywords

[No Author keywords available]

Indexed keywords

CHEMICAL BONDS; COMPLEXATION; INFRARED SPECTROSCOPY; MOLECULAR STRUCTURE; MOLECULAR VIBRATIONS; NEGATIVE IONS; NITROGEN; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; POSITIVE IONS; SYNTHESIS (CHEMICAL); X RAY DIFFRACTION ANALYSIS;

EID: 1642378610     PISSN: 14779226     EISSN: None     Source Type: Journal    
DOI: 10.1039/B311348E     Document Type: Article
Times cited : (49)

References (47)
  • 1
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  • 2
    • 0003715791 scopus 로고
    • ed. M. T. Pope and A. Müller, Kluwer Academic Publishers, Dordrecht, The Netherlands
    • (b) Polyoxometalates: From Platonic Solids to Anti-Retroviral Activity, ed. M. T. Pope and A. Müller, Kluwer Academic Publishers, Dordrecht, The Netherlands, 1994.
    • (1994) Polyoxometalates: From Platonic Solids to Anti-Retroviral Activity
  • 24
    • 0003561318 scopus 로고
    • SMART and SAINT
    • Siemens Analytical Instruments Inc., Madison, WI
    • SMART and SAINT, Siemens Analytical Instruments Inc., Madison, WI, 1990.
    • (1990)
  • 25
    • 0003576932 scopus 로고    scopus 로고
    • SADABS, A program for absorption correction with the siemens SMART area-detector system
    • University of Göttingen
    • G. M. Sheldrick, SADABS, A Program for Absorption Correction with the Siemens SMART Area-Detector System, University of Göttingen, 1996.
    • (1996)
    • Sheldrick, G.M.1
  • 26
    • 0004150157 scopus 로고    scopus 로고
    • SHELXS 97 and SHELXL 97, programs for crystal structure solution and refinement
    • University of Göttingen
    • G. M. Sheldrick, SHELXS 97 and SHELXL 97, Programs for Crystal Structure Solution and Refinement, University of Göttingen, 1997.
    • (1997)
    • Sheldrick, G.M.1
  • 27
    • 0004150157 scopus 로고    scopus 로고
    • SHELXTL version 5.03. Software package for crystal structure determination
    • Siemens Analytical X-ray Instrument Division, Madison, WI
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    • (1994)
  • 28
    • 0004795325 scopus 로고
    • note
    • A relatively strong hydrogen bonding interaction occurs in 1a between a pair of methanol solvent molecules, the distance between the oxygen atoms is 2.778(5) Å. Methanol molecules are also hydrogen bonded to the squarato carbonyl oxygens, the corresponding O ··· O distances are 2.758(6) and 2.792(3) Å. An interesting π-π stacking pattern of solvent pyridine molecules and coordinated pyridines is observed in 1b. The interplanar spacings in the range 3.43-3.83 Å signify weak interactions between the ring system (T. P. Blatchford, M. H. Chisholm and J. C. Huffman, Inorg. Chem., 1988, 27, 2059).
    • (1988) Inorg. Chem. , vol.27 , pp. 2059
    • Blatchford, T.P.1    Chisholm, M.H.2    Huffman, J.C.3
  • 46
    • 1642427097 scopus 로고    scopus 로고
    • note
    • It is known in the organic literature that N-methylpyridinium salts result from a nucleophilic attack of pyridine on methyl halide formed from methanol and hydrogen halide. The halogenation of alcohols takes place only in a strongly acidic medium. It also proceeds more readily with tertiary and secondary alcohols, but not with methanol. The reaction medium in our case is not acidic, as it contains mostly pyridine. Further efforts to elucidate mechanisms governing the formation of N-alkylpyridinium cations are in progress.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.