80995-57-9

Upstream product

• 6018-89-9 nickel(II) acetate tetrahydrate 
• 95-54-5 1,2-diamino-benzene 
• 93-91-4 1-phenylbutan-1,3-dione 

Downstream Products

• 109144-06-1 Ni((C₅H₅O₂)2C₁₈H₈N₄(CH₃)2(C₆H₅)2) 
• 375347-53-8 (6,17-dimethyl-8,15-diphenyldibenzo(b,i)(1,4,8,11)-tetra-aza⁽¹⁴⁾annulenato)nickel(II)*CH₂Cl₂ 
• 109144-07-2 Ni((C₆H₄NCCH₃CCC₆H₅N)2HC₅OH₅O) 

Relevant academic research and scientific papers

(6,17-Dimethyl-8,15-diphenyldibenzo[b,i][1,4,8,11] -tetra-aza[14]annulenato)nickel(II) in solids: Two guest-free polymorphs and inclusion compounds with methylene chloride and fullerene (C60)-carbon disulfide

Two guest-free polymorphs and two inclusion compounds of the macrocyclic title complex [NiL] have been isolated and characterized with single-crystal and/or powder XRD, solid-state 13C NMR, and other methods. The inclusion compound with methylene chloride, [NiL]*(CH2Cl2), is stable in air and thermally stable up to ～128 °C. Its crystal structure is consistent with van der Waals packing of the host [NiL] and guest CH2Cl2 molecules. The host complex has square-planar coordination of the nickel(II) center with four nitrogen atoms of the macrocycle with an average Ni-N distance of 1.86 A. The molecule has a saddle-shaped conformation with the guest molecule located between one phenylene and two phenyl rings of the host molecule. Isostructural compounds with chloroform and 2-chloropropane form only as mixtures along with a guest-free host polymorph. The inclusion compound with C60 has a composition 3[NiL]*(C60)*2(CS2) and here also the crystal structure is consistent with a van der Waals type of packing. Three crystallographically inequivalent [NiL] molecules have geometries similar to that in the inclusion compound with methylene chloride. The concave surfaces of the complex molecules form a spherical cavity for the C60 molecule. At-100 °C the C60 molecule is disordered over two orientations centered at the same site. 13C NMR studies at room temperature show that the C60 molecule is undergoing rapid pseudoisotropic rotation. The stability and other properties of the title and related complexes are discussed.

Synthesis and spectroscopic studies on nickel complexes with substituted dibenzozetraaza[14] annulenes

A series of diamagnetic macrocyclic nickel complexes I bearing substituted dibenzotetraaza[14] annulene ligands with methyl and/or phenyl groups on NCR moieties and methyl or nitro groups on the phenylen units have been prepared by Ni template synthesis f