Vanadium (IV) chloride diselenoether adducts [VCl4(L–L)] were synthesized as very moisture-sensitive dark purple solids by the reactions of VCl4 in anhydrous
CH2Cl2 solution at room temperature with one molar equivalent of diselenoethers L–L (L–L = MeSe(CH2)2SeMe, MeSe(CH2)3SeMe, nBuSe(CH2)2SenBu). The synthesized compounds were tested as precursors for low pressure chemical vapor deposition (LPCVD);
however it was determined that these complexes were not sufficiently volatile for using them as single-source precursors for VSe2 deposition.[i]
[i] A.L. Hector, M. Jura, W. Levason, S.D. Reid, G. Reid, New J. Chem., 2009, 33, 641-645, DOI: 10.1039/B817903D, « Vanadium selenoether and selenolate complexes, potential single-source precursors for CVD of VSe2 thin films », https://pubs.rsc.org/en/content/articlelanding/2009/nj/b817903d/unauth#!divAbstract