Geometry and molecular parameters of 3,4-bis(dimethylamino)-3-cyclobutene-1,2 and its isomer bis(dimethylamino)squaraine - Combined study by IR spectroscopy, XRD and ab initio MO calculations (vol 92, pg 3611, 1996) (JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1997)

(untitled) - Lunelli, B; Roversi, P; Ortoleva, E; Destro, R