biblio
, “C-H center dot center dot center dot N hydrogen bonds mediated solid state structures of 2,2 `-bis (4-pyridylsulfanylmethyl)-1,1 `-biphenyl and 9-(4-pyridylsulfanyl)phenanthrene”, Journal of Molecular Structure, vol. 937, no. 1-3, pp. 81-84, 2009.