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Volumn 10, Issue 14, 2004, Pages 3423-3429

On the importance of electron correlation effects for the π-π interactions in cyclophanes

Author keywords

Ab initio calculations; Cyclophanes; Density functional calculations; Pi interactions; Stacking interactions

Indexed keywords

AROMATIC COMPOUNDS; CORRELATION METHODS; CRYSTAL STRUCTURE; PERTURBATION TECHNIQUES; PROBABILITY DENSITY FUNCTION; VIBRATION CONTROL;

EID: 3242880553     PISSN: 09476539     EISSN: None     Source Type: Journal    
DOI: 10.1002/chem.200400091     Document Type: Article
Times cited : (167)

References (51)
  • 3
    • 3242887372 scopus 로고    scopus 로고
    • (Eds.: R. Gleiter, H. Hopf), Wiley-VCH, Weinheim (Germany)
    • Modern Cyclophane Chemistry (Eds.: R. Gleiter, H. Hopf), Wiley-VCH, Weinheim (Germany), 2004.
    • (2004) Modern Cyclophane Chemistry
  • 28
    • 3242881436 scopus 로고    scopus 로고
    • The basis sets are available from the TURBOMOLE homepage http://www.turbomole.com via the FTP Server Button (in the subdirectories basen, jbasen, and cbasen).
  • 39
    • 3242877665 scopus 로고    scopus 로고
    • note
    • The X-ray crystal structure of [2.2]paracyclophane was recently reinvestigated with higher precision at low temperature (19 K): D. Stalke, Universität Würzburbg, unpublished results. The author is grateful to Prof. Stalke for disclosing to us the atomic coordinates of 1, enabling us to obtain more conclusive comparisons with the theoretical data.
  • 47
    • 3242876721 scopus 로고    scopus 로고
    • note
    • The face-to-face structure of the benzene dimer cannot directly be compared with the situation of the cyclophanes, because owing to the ring deformation there may be several different IRD. These deformations furthermore shift electron density from the "interior" of a phane to the outer sides; this reduces steric repulsion. The interaction energies at particular distances in Figure 3 are thus not directly transferable to strain components in cyclophanes.
  • 48
    • 3242882612 scopus 로고    scopus 로고
    • note
    • 6h symmetry and the IRD are within 1 pm of the corresponding B3LYP values. The reason for this is probably a compensation of the overestimated π-πinteractions by correlation effects in the σ system which are absent in HF.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.