Infra-red and the Near Ultra-violet Absorption Spectra of Polypheny, Derivatives of the Elements of Groups IVb and Vb

Abstract

WE have been investigating the infra-red and the near ultra-violet absorption spectra of several polyphenyl derivatives of the elements of groups IVb and Vb. In the case of the derivatives of the Vb elements, we have studied the spectra of derivatives where the central atoms possess and do not possess unshared p-electrons (derivatives of the atoms in their ‘tri-valent’ and ‘pentavalent’ states respectively). In addition, we have been studying the spectra of o-, m- and p -substituted tritylbenzenes (trityl = triphenylmethyl). The ultra-violet spectra were recorded in alcohol solutions, and the infra-red spectra in mulls and also in solutions.