
%0 Journal Article
%A Henrick, K 
%A Mickiewicz, M 
%A Wild, SB 
%T The mass spectra of some ortho-phenylene substituted trivalent organo-arsines and -phosphines
%J Australian Journal of Chemistry
%D 1975/07/01
%V 28
%N 7
%P 1455-1472
%K 
%R https://doi.org/10.1071/CH9751455
%U https://www.publish.csiro.au/paper/CH9751455 
%X An investigation of the mass spectra of a series of trivalent organoarsines and some of their phosphorus analogues of the general types, o-X-C6H4AsRR? [where X = CH3, CH2OCH3, CH2CH2OCH3, Br, Cl, CO2H or CO2CH2CH3 and RR? = (CH3)2, Cl2 or CH3(C6H5)] and o-X-C6H4CH2AsRR? [where X = Br or Cl and RR? = (CH3)2, Cl2, CH3(C6H5), (C6H5)2 or (p-CH3C6H4)2], has been carried out at 70 eV. The main fragmentation pathways have been determined and it has been shown that the ortho substituents direct the breakdown of the molecular ions to the formation of five-membered arsenic-containing ring systems. The general ortho coupling effect found in the substituted aromatic arsenic compounds discussed here is more pronounced than that observed in the spectra of symmetrical o- phenylenediarsines and related compounds of phosphorus and antimony. 
