Synthesis and reactivity of bis(1,4-diaryltetraazabutadiene)nickel complexes. Crystal and molecular structure of bis[1,4-bis(3,5-dimethylphenyl)tetraazabutadiene]nickel

1982 ◽  
Vol 21 (6) ◽  
pp. 2373-2378 ◽  
Author(s):  
Peter. Overbosch ◽  
Gerard. Van Koten ◽  
Ok. Overbeek
1985 ◽  
Vol 40 (3) ◽  
pp. 357-362 ◽  
Author(s):  
Maria Brenndörfer ◽  
Hans Albert Brune ◽  
Tony Debaerdemaeker ◽  
Reinhard Hemmer

The syntheses of five new nickel-II-complexes of the type [HPR′3][R3PNiCl3] (R,R′ = C6H5, n-C4H9, C6H11 , C5H9 and R = C6H5, R′ = C6H11) are described.The structure of the compound [HP(C6H11)3][(C6H5)3PNiCl3] was determined by X-ray analysis. The crystals are monoclinic; space group P21/n with the lattice parameters a = 18.180(5), b = 18.842(4), c = 11.173(3) Å and β = 107.12(6)°; Z = 4.


Polyhedron ◽  
1995 ◽  
Vol 14 (8) ◽  
pp. 991-996 ◽  
Author(s):  
Pavel Kopel ◽  
František Březina ◽  
Zdeněk Trávníček ◽  
Zdeněk Šindelář ◽  
Jan Lasovský ◽  
...  

1978 ◽  
Vol 33 (12) ◽  
pp. 1381-1385 ◽  
Author(s):  
Heindirk tom Dieck ◽  
Michael Svoboda ◽  
Jürgen Kopf

Abstract Reduction of anhydrous nickel(II) compounds in the presence of diazadienes RN=CR'-CR' = NR, |(DAD), yields (DAD)2Ni(0). This complex 1 with R = CH(i-C3H7)2 is especially reactive and comproportionates with DADNiBr2 (2) to yield the bromobridged dimeric nickel(I) species (DADNiBr)2 (3). The crystal and molecular structure of 3 has been determined by single crystal X-ray diffraction: Space group Pbca with a = 1225.8(12), b = 1474.8(14) and c = 2167.4(22) pm; Ra = 0.076, 1034 reflections. Catalytic tetramerisation of substituted alkynes with 1 is discussed in view of the very easy formation of dimers 3.


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