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Volumn 47, Issue 5, 2008, Pages 924-927

Octa-, deca-, trideca-, and tetradecanuclear heterometallic cyclic chromium-copper cages

Author keywords

Chromium; Heterometallic complexes; Molecular magnetism; Supramolecular chemistry

Indexed keywords

CRYSTALLIZATION; MOLECULAR DYNAMICS; REACTION KINETICS; SUPRAMOLECULAR CHEMISTRY;

EID: 38549098223     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200704132     Document Type: Article
Times cited : (54)

References (29)
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    • Crystal data for 2 (C149H271Cr 12Cu2F16N2O52; Mr, 3977.8 g mol-1, dark green block, monoclinic, space group C2/c, a, 31.710(4, b, 26.311(5, c, 28.183(4) Å, β, 116.584(10)°, V, 21 027.8(5) Å3, Z, 4, T, 150(2) K, ρ, 1.256 g cm -3, F(000, 8340, μ(MoKα, 0.87 mm -1. Crystal data for 3 (C146H264Cr 11Cu2F15N2O48; Mr, 3799.7 g mol-1, green plate, monoclinic, space group P21/c, a, 20.2730(3, b, 41.3517(8, c, 25.2874(6) Å, β, 105.5320(10)°, V, 20 424.8(7) Å3, Z, 4, T, 150(2) K, ρ, 1.2367 g cm-3, F000
    • 1 = 0.0676 (10 300 reflections with I > 3σ(I)). CCDC-659843 (2), 659844 (3), 659845 (4), and 659846 (5) contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif.
  • 15
    • 0037007939 scopus 로고    scopus 로고
    • Angew. Chem. Int. Ed. 2002, 41, 2386-2389.
    • (2002) Angew. Chem. Int. Ed , vol.41 , pp. 2386-2389
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    • (2002) Angew. Chem. Int. Ed , vol.41 , pp. 4318-4321
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    • Pentanuclear: a B. Hasenknopf, J.-M. Lehn, B. O. Kneisel, G. Baum, D. Fenske, Angew. Chem. 1996, 108, 1987-1990;
    • Pentanuclear: a) B. Hasenknopf, J.-M. Lehn, B. O. Kneisel, G. Baum, D. Fenske, Angew. Chem. 1996, 108, 1987-1990;
  • 24
    • 38549169895 scopus 로고    scopus 로고
    • Nonanuclear: a O. Cador, D. Gatteschi, R. Sessoli, F. K. Larsen, J. Overgaard, A.-L. Barra, S. J. Teat, G. A. Timco, R. E. P. Winpenny, Angew. Chem. 2004, 116, 5308-5312;
    • Nonanuclear: a) O. Cador, D. Gatteschi, R. Sessoli, F. K. Larsen, J. Overgaard, A.-L. Barra, S. J. Teat, G. A. Timco, R. E. P. Winpenny, Angew. Chem. 2004, 116, 5308-5312;
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    • 6044235631 scopus 로고    scopus 로고
    • Angew. Chem. Int. Ed. 2004, 43, 5196-5200;
    • (2004) Angew. Chem. Int. Ed , vol.43 , pp. 5196-5200
  • 28
    • 38549180429 scopus 로고    scopus 로고
    • The parameters that provided the best fit were used to calculate, by QMC, magnetization vs. field strength (M vs. H, solid line in Figure S2 in the Supporting Information). This was compared with M vs. H for the lowest temperature measured to confirm the ground states. For 3 calculation by QMC of M vs. H is not possible owing to frustration within the tridecanuclear ring. Instead, the ground state was determined by assuming only two low-lying energy multiplets (S = 1/2 and S = 3/2) and calculating χT for this small subset of energy levels and comparing this value with observation.
    • The parameters that provided the best fit were used to calculate, by QMC, magnetization vs. field strength (M vs. H, solid line in Figure S2 in the Supporting Information). This was compared with M vs. H for the lowest temperature measured to confirm the ground states. For 3 calculation by QMC of M vs. H is not possible owing to frustration within the tridecanuclear ring. Instead, the ground state was determined by assuming only two low-lying energy multiplets (S = 1/2 and S = 3/2) and calculating χT for this small subset of energy levels and comparing this value with observation.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.