Square-planar complexes of copper(II), nickel(II), and cobalt(II) with deprotonated biuret derivatives. Crystalline and molecular structures of sodium (o-phenylene and propylenebis(biuretato)cuprate(II)-dimethyl sulfoxide complexes

1985 ◽  
Vol 24 (22) ◽  
pp. 3615-3620 ◽  
Author(s):  
Jean Pierre Barbier ◽  
Ahmed El Biyyadh ◽  
Charles Kappenstein ◽  
N. Dongui Mabiala ◽  
Rene P. Hugel
Keyword(s):  
Dimethyl Sulfoxide ◽  
Molecular Structures ◽  
Square Planar ◽  
Square Planar Complexes

scholarly journals The Crystal and Molecular Structures of cis-Square-planar Complexes of Tellurium Dichloride and Dibromide with Trimethylenethiourea.

1975 ◽  
Vol 29a ◽  
pp. 212-216 ◽  
Author(s):  
Kjell S. Fredin ◽  
Kjartan Marøy ◽  
Sjur Slogvik ◽  
J. T. Southern ◽  
J. T. Southern ◽  
...  
Keyword(s):  
Molecular Structures ◽  
Crystal And Molecular Structures ◽  
Square Planar ◽  
Square Planar Complexes

The Crystal and Molecular Structures of trans Square-Planar Complexes of Tellurium Dibromide and Diioide with Ethylenethiourea.

1965 ◽  
Vol 19 ◽  
pp. 2349-2360 ◽  
Author(s):  
Olav Foss ◽  
Hans M. Kjøge ◽  
Kjartan Marøy ◽  
Svein Solheimsnes ◽  
Brita Swan ◽  
...  
Keyword(s):  
Molecular Structures ◽  
Crystal And Molecular Structures ◽  
Square Planar ◽  
Square Planar Complexes

scholarly journals The Crystal and Molecular Structures of cis Square-Planar Complexes of Tellurium Dichloride and Dibromide with Thiourea.

1966 ◽  
Vol 20 ◽  
pp. 113-122 ◽  
Author(s):  
Olav Foss ◽  
Kjell Johnsen ◽  
Knut Maartmann-Moe ◽  
Kjartan Marøy ◽  
J. Brunvoll ◽  
...  
Keyword(s):  
Molecular Structures ◽  
Crystal And Molecular Structures ◽  
Square Planar ◽  
Square Planar Complexes

Synthesis and crystal structure analyses of tri-substituted guanidine-based copper(II) complexes

2021 ◽  
Vol 76 (3-4) ◽  
pp. 193-199
Author(s):  
Muhammad Said ◽  
Sadia Rehman ◽  
Muhammad Ikram ◽  
Hizbullah Khan ◽  
Carola Schulzke
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Molecular Structures ◽  
Hydroxyl Groups ◽  
Synthesis And Crystal Structure ◽  
Pyramidal Geometry ◽  
Tautomeric Forms ◽  
Square Planar ◽  
Nitrogen Donor ◽  
Square Pyramidal Geometry

Abstract Three guanidine-derived tri-substituted ligands viz. N-pivaloyl-N′,N″-bis-(2-methoxyphenyl)guanidine (L1), N-pivaloyl-N′-(2-methoxyphenyl)-N″-phenylguanidine (L2) and N-pivaloyl-N′-(2-methoxyphenyl)-N″-(2-tolyl)guanidine (L3) were reacted with Cu(II) acetate to produce the corresponding complexes. The significance of the substituent on N″ for the resulting molecular structures and their packing in the solid state has been studied with respect to the structural specifics of the corresponding Cu(II) complexes. The key characteristic of the guanidine-based metal complexation with Cu(II) is the formation of an essentially square planar core with an N2O2 donor set. As an exception, in the complex of L1, the substituent’s methoxy moiety also interacts with the Cu(II) center to generate a square-pyramidal geometry. The hydroxyl groups of the imidic acid tautomeric forms of L1–L3, in addition to N″, are also bonded to Cu(II) in all three complexes rather than the nitrogen donor of the guanidine motif.

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