Synthesis and structure of infinite-chain copper(II) polymer systems

Morgan, Larry W.; Goodwin, Kevin V.; Pennington, William T.; Petersen, John D.

doi:10.1021/ic00032a036

Cited by 36 publications

(6 citation statements)

References 4 publications

(5 reference statements)

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“…The py2 ring is rotated by 54.9(2)° and 64.3° with respect to pyz and py1 rings, respectively. The bond lengths and angles of the dpp ligand are in agreement with those observed in the free dpp and in the dpp-containing copper(II) complexes of formula [Cu(dpp)(H 2 O) 2 ] n (ClO 4 ) 2 n ·2 n H 2 O, [Cu 2 (dpp)(C 4 O 4 ) 2 (H 2 O) 6 ], [Cu 2 (dpp)(C 5 O 5 ) 2 (H 2 O) 3 ]·2H 2 O, [Cu(dpp)(H 2 O)] n (NO 3 ) 2 n ·2 n /3H 2 O, [Cu(dpp)(H 2 O) 2 ] n (CF 3 SO 3 ) 2 n , [Cu(dpp)(H 2 O) 2 ] n (A) 2 n ·2 n H 2 O (A = BF 4 − , ClO 4 − ), [Cu(dpp)(N 3 ) 2 ] n , [Cu(dpp)(NCO) 2 ] n , [Cu(dpp)(NCS) 2 ] 2 , [Cu(H 2 O)(dpp)(NCS) 2 ] 2 ·2H 2 O, [Cu 2 (dpp)(H 2 O)(dmso)Cl 4 ]·dmso (dmso = dimethylsulfoxide), [Cu 2 (dpp)Cl 4 ] n , [Cu 2 (dpp)(hfac) 4 ] (Hhfac = 1,1,1,5,5,5-hexafluoropentane-2,4-dione), [Cu(dpp)(H 2 O)(C 2 O 4 )]·H 2 O, and [Cu 2 (dpp) 2 (H 2 O) 2 (NO 3 ) 2 (C 2 O 4 )]·4H 2 O …”

Section: Resultssupporting

confidence: 80%

Supramolecular Networks in Copper(II) Malonate Complexes

Delgado

Lahoz

Lloret

et al. 2008

Crystal Growth & Design

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Six new copper(II)-malonate containing complexes [Cu(dpydiol)(mal)(H2O)]·2H2O (1) (dpydiol = bis(2-pyridyl)methanediol), [Cu(dpa)(mal)(H2O)]·H2O (2) (dpa = 2,2′-dipyridylamine), [Cu(pyim)(mal)(H2O)]·H2O (3) (pyim = 2-(2-pyridyl)imidazole), [Cu(dpp)(mal)(H2O)]·3/2H2O (4) (dpp = 2,3-bis(2-pyridyl)pyrazine), [Cu(phen)(mal) (H2O)]·H2O (5), and [Cu2(phen)2(mal)(H2O)3](NO3)2·2H2O (6) (phen = 1,10-phenanthroline) were prepared and their structures were determined by single-crystal X-ray diffraction analysis. 1−5 are mononuclear complexes, whereas 6 is a dinuclear species. The neutral mono- and dinuclear units and the crystallization water molecules are linked together by hydrogen bonds to afford three-dimensional networks. In addition, π···π stacking (2, 5 and 6) and hydrophobic (4 and 6) interactions contribute to the stabilization of the structures. The analysis of the magnetic data of 6 in the temperature range 1.9–300 K shows the occurrence of a significant ferromagnetic interaction between the copper(II) ions through the carboxylate−malonate bridge [J = +6.22(1) cm−1, the isotropic spin Hamiltonian being defined as Ĥ = −JŜ A·Ŝ B].

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Section: Resultssupporting

confidence: 80%

Supramolecular Networks in Copper(II) Malonate Complexes

Delgado

Lahoz

Lloret

et al. 2008

Crystal Growth & Design

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“…The average C−C and C−N bond distances in the rings of this ligand are 1.42(1) and 1.35(1) Å for compounds 1 − 3 . These values are in good agreement with those currently given in the literature for this ligand. − …”

Section: Resultssupporting

confidence: 91%

“…These values are in good agreement with those currently given in the literature for this ligand. [19][20][21] Infrared Spectroscopy. The most important aspects containing the infrared spectra of 1-3 deal with the possibility to distinguish between the chelating and bis-chelating coordination modes of bpm and to characterize the presence of the different coordination modes of the pseudohalide ligands.…”

Section: Description Of the Structure Of [Mn 2 (Bpm) 3 (Ncs) 4 ] (1)mentioning

confidence: 99%

Influence of Pseudohalide Ions on the Molecular Structure and Magnetic Properties of the Manganese(II)−Bipyrimidine−Pseudohalide System

et al. 1997

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The compounds [Mn2(bpm)3(NCS)4] (1), [Mn(bpm)(NCO)2] (2), and [Mn2(bpm)(N3)4] (3) (where bpm= 2,2‘-bipyrimidine) have been synthesized and characterized. Compound 1 crystallizes in the triclinic P1̄ space group, with a = 9.122(1) Å, b = 9.229(1) Å, c = 11.710(2) Å, α = 74.89(1)°, β = 80.30(1)°, γ = 61.04(1)°, V = 831.7(2) Å3, Z = 2, R(F o) = 0.029, and wR(F o 2) = 0.078. Compound 2 crystallizes in the monoclinic C2/c space group, with a = 7.309(1) Å, b = 14.498(2) Å, c = 10.740(4) Å, β = 99.93(4)°, V = 1121.0(5) Å3, Z = 4, R = 0.025, and wR(F o 2) = 0.060. In the case of compound 3, the crystal parameters of the monoclinic C2/m space group are a = 6.206(2) Å, b = 15.084(2) Å, c = 8.909(1) Å, β = 95.75(2)°, V = 829.8(3) Å3, Z = 4, R = 0.029, and wR(F o 2)= 0.069. The pseudohalide ions have a dramatic influence in the molecular structures of the three compounds. Compound 1 is dinuclear, with the manganese(II) ions bridged by bpm ligands and with terminal bpm and NCS groups; compound 2 is a linear chain of manganese(II) ions bridged by bpm ligands in cis conformation, with terminal cyanate groups; compound 3 shows a two-dimensional honeycomb like structure, where the sheets consist of an infinite hexagonal array of manganese(II) ions bridged by bischelating bpm ligands and double end-on azido bridges. The manganese(II) ions have octahedral environments in all cases. Magnetic susceptibility measurements show antiferromagnetic couplings for compounds 1 and 2, while alternating ferro-antiferromagnetism is observed for compound 3. The obtained exchange parameters are J = −0.72 K and J = −0.78 K for compounds 1 and 2, respectively. No theoretical model is available for compound 3, which represent the first two-dimensional honeycomb-like compound showing alternating signs in the magnetic interactions.

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“…Discussion 2,2'-bipyrimidine (bpm)has been extensively used in the development of metal complexes [1,2]. As aversatile ligand, bpm is able to coordinate metal ions in abidentate or bis-bidentate bridging mode, leading to mono or polynuclear complexes [3].…”

Section: Methodsmentioning

confidence: 99%

Crystal structure of tetraaqua dinitrato-κ2O,O'-4,4',6,6'-tetramethyl-2,2'- bipyrimidine-κ4N,N':N'',N''' dinickel(II) dinitrate, C6H11N4NiO8

Wang

2014

Zeitschrift Für Kristallographie - New Crystal Structures

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Synthesis and structure of infinite-chain copper(II) polymer systems

Cited by 36 publications

References 4 publications

Supramolecular Networks in Copper(II) Malonate Complexes

Supramolecular Networks in Copper(II) Malonate Complexes

Influence of Pseudohalide Ions on the Molecular Structure and Magnetic Properties of the Manganese(II)−Bipyrimidine−Pseudohalide System

Crystal structure of tetraaqua dinitrato-κ2O,O'-4,4',6,6'-tetramethyl-2,2'- bipyrimidine-κ4N,N':N'',N''' dinickel(II) dinitrate, C6H11N4NiO8

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