Chromium, 2-carboxybenzenediazonium-2,5-dichloro-4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulfonic acid-4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulfonic acid coupling products complexes, compds. with N,N'-bis(Ph and o-tolyl and xy