López C, Claramunt RM, Pinilla E, Torres MR, Alkorta I, Elguero J. Molecular complexes between pi-excedent heterocycles (indoles and carbazole) and pi-deficient polynitrobenzenes.
MAGNETIC RESONANCE IN CHEMISTRY : MRC 2009;
47:917-924. [PMID:
19650063 DOI:
10.1002/mrc.2483]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Five charge-transfer complexes 1-5 derived from indoles (including a carbazole) and halogenopolynitrobenzenes (ClDNB, FDNB, ClTNB) as well as their individual components have been studied in the solid state by (13)C CPMAS NMR. The stacking effects on the (13)C chemical shifts have been rationalized by means of M05-2X functional and GIAO/B3LYP/6-311 ++G(d,p) calculations. The results, although only semiquantitative, are very promising for studying such structures.
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