78802-17-2

Upstream product

• 134750-23-5 N,N'-bis(2,6-diisopropylphenyl)-1,4-diaza-1,3-butadiene 
• 116917-18-1 Ni(CO)2(1,4-(2,6-iPr₂Ph)2-1,4-diaza-1,3-butadiene) 
• 125196-97-6 (2,6-i-Pr2C6H3NCHCHNC6H3-2,6-i-Pr2)Ni(η2-η2-C6H10) 
• 125173-50-4 (1,4-bis(2,6-diisopropylphenyl)-1,4-diazabutadiene)Ni(ethene)2 

Relevant academic research and scientific papers

Synthesis and Structure of Ni(2,6-iPr2C6H3N=CH-CH=NC6H3-2,6-iPr2)2

Ni(cdt) reacts with two equivalents of the sterically highly demanding 1,4-diazadiene 2,6-iPr2C6H3N=CH-CH=NC6H3-2,6-iPr2 to yield the red-brown, crystalline title compound Ni(2,6-iPr2Ph-dad)2 (3).The existence of this compound was previously uncertain. 1H and 13C NMR, MS, and UV/VIS spectra of 3 are reported.The X-ray structure analysis of 3 revealed a strongly distorted tetrahedral coordination of the nickel center with a dihedral angle of 51 between the planes of the chelate rings and mean bond lengths Ni-N 1.965(4) Angstroem and N=CH 1.308(5) Angstroem.The poorly soluble compound appears to be rather unreactive because of the bulk of the ligands.

Spectroscopy and photochemistry of nickel(0)-α-diimine complexes. 2. MLCT photochemistry of Ni(CO)2(R-DAB) (R = tBu, 2,6-iPr2Ph): Evidence for two different photoprocesses

This article describes the low-temperature photochemistry of the complexes Ni(CO)2(tBu-DAB) (I) and Ni(CO)2(2,6-iPr2Ph-DAB) (II) in different media, in both the absence and the presence of a substituting ligand. The complexes differ in their molecular structure and in the character of their lowest MLCT transitions. The results of this study show that these differences are also responsible for the different primary photoprocesses taking place upon low-energy excitation. Irradiation into the MLCT bands causes breaking of a metal-nitrogen bond in the case of complex I and loss of CO for complex II.