3D, 2D and 1D networks via N-Ha <- O and N-Ha <- N hydrogen bonding by the bis-amide analogues: Effect of chain lengths and odd-even spacers

作者：Mukherjee Gargi; Biradha Kumar^*

来源：Journal of Chemical Sciences, 2014, 126(5): 1285-1290.

DOI：10.1007/s12039-014-0696-7

• Odd-even effect
• amide-to-amide hydrogen bond
• pyridine interferences
• organic diamondoid

The synthesis, crystal structures and hydrogen bonding networks of four members of the bis(pyridinecarboxamido)alkane and bis(pyridyl)alkanediamides series (1 a parts per thousand currency sign n a parts per thousand currency sign 8), where the amide moieties are separated by alkyl chain (-(CH2)(n)-) having even or odd number of -(CH2)-groups are explored and correlated with the previously reported structures. The odd members (n = odd) of both the series are found to adopt three-dimensional networks in contrast to the 1D or 2D structures of the even members (n = even). This odd-even effect on the dimensionality of the networks however disappears with increase in chain length.

• 出版日期2014-9