Dimorphism and structural modulation in quinoxaline
Data(s) |
25/12/2010
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Resumo |
The Z' = 1 and Z' = 5 structures of quinoxaline are compared. The nature of the intermolecular interactions in the Z' = 5 structure is studied by means of variable-temperature single-crystal X-ray diffraction. The C-H center dot center dot center dot N and pi ... pi it interactions in these structures are of a stabilizing nature. The high Z' structure has the better interactions, whereas the low Z' structure has the better stability. This trade-off is a recurrent theme in molecular crystals and is a manifestation of the distinction between thermodynamically and kinetically favoured crystal forms. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/36037/1/Dimorphism.pdf Sathishkumar, Ranganathan and Mahapatra, Sudarshan and Thakur, Tejender S and Desiraju, Gautam R (2010) Dimorphism and structural modulation in quinoxaline. In: Current Science (Bangalore), 99 (12). pp. 1807-1811. |
Publicador |
Indian Academy of Sciences |
Relação |
http://www.ias.ac.in/currsci/25dec2010/contents.htm http://eprints.iisc.ernet.in/36037/ |
Palavras-Chave | #Solid State & Structural Chemistry Unit |
Tipo |
Journal Article PeerReviewed |