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Volumn 126, Issue 22, 2004, Pages 7082-7096

Molecular and electronic structures by design: Tuning symmetrical and unsymmetrical linear trichromium chains

Author keywords

[No Author keywords available]

Indexed keywords

CHROMIUM; COMPLEXATION; CRYSTAL STRUCTURE; ELECTRONS; MOLECULAR STRUCTURE;

EID: 3042812604     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja049055h     Document Type: Article
Times cited : (134)

References (128)
  • 58
    • 0001708490 scopus 로고
    • 4+ species due to the partial population of an excited triplet state, although the ground state has S = 0. See: Cotton, F. A.; Chen, H.; Daniels, L. M.; Feng, X. J. Am. Chem. Soc. 1992, 114, 8980.
    • (1992) J. Am. Chem. Soc. , vol.114 , pp. 8980
    • Cotton, F.A.1    Chen, H.2    Daniels, L.M.3    Feng, X.4
  • 80
    • 3042808400 scopus 로고    scopus 로고
    • note
    • -1): 3480 w, br, 3071 w, 3027 w, 2966 w, 2367 w, 2344 w, 2175 vs, 1605 s, 1594 s, 1547 w, 1466 vs, 1426 vs, 1364 s, 1311 m, 1280 w, 1155 m, 1108 w, 1053 w, 1015 m, 917 w, 878 w, 856 w, 763 m, 739 w, 644 w, 627 w, 557 w, 535 w, 517 w, 434 w.
  • 81
    • 3042721940 scopus 로고    scopus 로고
    • note
    • -1): 3595 w, 3482 w, br, 3074 w, 3030 w, 2965 w, 2796 w, 2672 w, 2611 w, 2506 w, 2183 vs, 1751 w, 1604 s, 1550 w, 1465 vs, 1427 vs, 1363 s, 1310 m, 1279 w, 1245 w, 1156 m, 1112 w, 1054 w, 1016 w, 919 w, 840 s, 765 m, 740 w, 647 w, 625 w, 557 w, 537 w, 517 w, 438 w. The axial F anion is probably abstracted from a PF6 anion.
  • 82
    • 0004150157 scopus 로고    scopus 로고
    • University of Göttingen: Göttingen, Germany
    • Sheldrick, G. M. SHELXTL97; University of Göttingen: Göttingen, Germany, 1997.
    • (1997) SHELXTL97
    • Sheldrick, G.M.1
  • 85
    • 84977289324 scopus 로고    scopus 로고
    • Program for absorption correction using SMART CCD data based on the method of Blessing
    • SADABS V2.10. Program for absorption correction using SMART CCD data based on the method of Blessing: Blessing, R. H. Acta Crystallogr. 1995, A51, 33.
    • Sadabs V2.10
  • 86
    • 84977289324 scopus 로고    scopus 로고
    • SADABS V2.10. Program for absorption correction using SMART CCD data based on the method of Blessing: Blessing, R. H. Acta Crystallogr. 1995, A51, 33.
    • (1995) Acta Crystallogr. , vol.A51 , pp. 33
    • Blessing, R.H.1
  • 87
    • 0003547621 scopus 로고    scopus 로고
    • Munich Area Detector (New EEC) System, Version EEC 11/1/89, with enhancements by Enraf-Nonius Corp., Delft, The Netherlands
    • Pflugrath, J.; Messerschmidt, A. MADNES, Munich Area Detector (New EEC) System, Version EEC 11/1/89, with enhancements by Enraf-Nonius Corp., Delft, The Netherlands. A description of MADNES appears in: Messerschmidt, A.; Pflugrath, J. J. Appl. Crystallogr. 1987, 20, 306.
    • MADNES
    • Pflugrath, J.1    Messerschmidt, A.2
  • 88
    • 85027633237 scopus 로고
    • Pflugrath, J.; Messerschmidt, A. MADNES, Munich Area Detector (New EEC) System, Version EEC 11/1/89, with enhancements by Enraf-Nonius Corp., Delft, The Netherlands. A description of MADNES appears in: Messerschmidt, A.; Pflugrath, J. J. Appl. Crystallogr. 1987, 20, 306.
    • (1987) J. Appl. Crystallogr. , vol.20 , pp. 306
    • Messerschmidt, A.1    Pflugrath, J.2
  • 91
    • 84977289324 scopus 로고    scopus 로고
    • Program for absorption correction for Enraf-Nonius FAST diffractometer using the method of: Blessing, R. H. Acta Crystallogr. 1995, A51, 33.
    • (1995) Acta Crystallogr. , vol.A51 , pp. 33
    • Blessing, R.H.1
  • 92
    • 3042808401 scopus 로고    scopus 로고
    • note
    • 2, in which all of the Cr atoms and the axial ligands are disordered, the two orientations of the molecule were restrained to have a similar geometry, although it should be pointed out that in the case of 8, the geometry of the molecule is slightly different in the major and minor orientations.
  • 113
    • 3042802062 scopus 로고    scopus 로고
    • note
    • 2, which is twinned in four components, all related to one another by 90° rotation about one of the unit cell axes. We believe that the orthorhombic cell is correct and merely simulates the tetragonal symmetry by this complex twinning. Unfortunately, satisfactory refinement of the structure in this Pnn2 setting was not possible (probably due to incorrect intensity data arising from overlapping reflections from the four twin components), although the THF molecule here is ordered on a position of 2-fold symmetry (disordered over a 222 position in P4n2), and the central Cr atom could be refined off the two-fold axis resulting in an unsymmetrical structure. While it is not clear that this twinning necessarily occurred in the previous work on the structure of 1·THF, we believe this to be so.
  • 119
    • 0006655961 scopus 로고
    • Wilson, A. J. C., Ed.; Kluwer Academic Publishers: Dordrecht
    • International Tables for Crystallography; Wilson, A. J. C., Ed.; Kluwer Academic Publishers: Dordrecht, 1995; Vol. C, p 681.
    • (1995) International Tables for Crystallography , vol.100 , pp. 681


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.