Polynuclear complexes with hydrogen-bonded bridges. Dinuclear complex of N,N'-bis(2-hydroxyethyl)-2,4-pentanediimine with copper(II)

1976 ◽  
Vol 15 (12) ◽  
pp. 2965-2970 ◽  
Author(s):  
J. A. Bertrand ◽  
T. D. Black ◽  
P. Gary. Eller ◽  
F. T. Helm ◽  
Rizwan. Mahmood
Keyword(s):  
Dinuclear Complex ◽  
Polynuclear Complexes ◽  
Hydrogen Bonded

Polynuclear complexes with hydrogen-bonded bridges. 3. Oxygen-oxygen hydrogen bonding between tris chelates of 2-aminoethanol

1979 ◽  
Vol 18 (9) ◽  
pp. 2419-2423 ◽  
Author(s):  
J. A. Bertrand ◽  
P. Gary Eller ◽  
Etsuko Fujita ◽  
Mark O. Lively ◽  
D. G. VanDerveer
Keyword(s):  
Hydrogen Bonding ◽  
Polynuclear Complexes ◽  
Oxygen Oxygen ◽  
Hydrogen Bonded

scholarly journals An unsymmetrical dinuclear scandium complex comprising salophen ligands [H2salophen = N,N′-bis(salicylidene)-1,2-phenylenediamine]

2019 ◽  
Vol 75 (2) ◽  
pp. 175-178
Author(s):  
Volker Lorenz ◽  
Phil Liebing ◽  
Liane Hilfert ◽  
Sabine Busse ◽  
Frank T. Edelmann
Keyword(s):  
The Other ◽  
Dinuclear Complex ◽  
Stacking Interactions ◽  
Tetradentate Ligand ◽  
Π Stacking ◽  
Nitrate Tetrahydrate ◽  
Oxygen Atoms ◽  
Hydrogen Bonded

Treatment of scandium nitrate tetrahydrate with the tetradentate ligand H2salophen [N,N′-bis(salicylidene)-1,2-phenylenediamine] afforded the yellow dinuclear complex Sc(NO3)2(μ-salophen)Sc(salophen)(EtOH) or [Sc2(C20H14N2O2)2(NO3)2(C2H6O)] (systematic name: (ethanol-κO)bis(nitrato-κ2 O,O′){μ-2,2′-[1,2-phenylenebis(nitrilomethanylylidene)]diphenolato-κ4 N,N′,O,O′:κ2 O,O′}{2,2′-[1,2-phenylenebis(nitrilomethanylylidene)]diphenolato-κ4 O,N,N′,O′}discandium). In this compound, one salophen ligand displays a bridging coordination via the two oxygen atoms, while the other salophen ligand is attached to only one Sc center. This arrangement is stabilized by a hydrogen-bonded EtOH co-ligand, and by π–π stacking interactions between the two salophen ligands.

Polynuclear Co(II) and Cu(II) complexes of tetraacetylethane: CuII2(dpa)2(tae)(O2CCF3)2, {[CuII2(dpa)2(tae)(4,4'-bipy)](O2CCF3)2}n, and [CoII2(dpa)4(tae)](O2CCH3)2(H2O)2, dpa = 2,2'-dipyridylamine, tae = tetraacetylethane dianion

1999 ◽  
Vol 77 (8) ◽  
pp. 1424-1435 ◽  
Author(s):  
Yousheng Zhang ◽  
Steven R Breeze ◽  
Suning Wang ◽  
John E Greedan ◽  
N P Raju ◽  
...  
Keyword(s):  
Solid State ◽  
Molecular Sieve ◽  
Three Dimensional ◽  
Chain Structure ◽  
Dinuclear Complex ◽  
Dimensional Structure ◽  
Polymeric Compound ◽  
Bridging Ligand ◽  
Ferromagnetic Exchange ◽  
Hydrogen Bonded

The syntheses and structures of copper(II) and cobalt(II) complexes employing tetraacetylethane as the bridging ligand have been investigated. The reaction of Cu(O2CCF3)2 with tetraacetylethane (tae) and 2,2'-dipyridylamine (dpa) yielded a dinuclear complex CuII2(dpa)2(tae)(O2CCF3)2 (1), which has an extended hydrogen-bonded chain structure in the solid state. The reaction of 4,4'-dipyridyl (4,4'-bipy) with compound 1 resulted in the formation of a polymeric compound {[CuII2(dpa)2(tae)(4,4'-bipy)](O2CCF3)2}n (2), where the dinuclear unit is cross-linked by the 4,4'-dipyridyl ligand. The reaction of Co(O2CCH3)2 with tetraacetylethane and 2,2'-dipyridylamine yielded a helical dinuclear complex [CoII2(dpa)4(tae)](O2CCH3)2(H2O)2 (3), which forms a hydrogen-bonded band architecture in the solid state. The three-dimensional structure of 3 has molecular sieve-like channels that host methanol molecules reversibly. While only either negligible or weak magnetic exchanges appear to be present in compounds 1 and 2, there appears to be a significant ferromagnetic exchange in 3, which is likely caused by orbital orthogonality of the Co(II) ions, as supported by the crystal structure and EHMO calculations.Key words: cobalt, copper, polynuclear, tetraacetylethane complex, magnetism.

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