Syntheses, Crystal Structures and Magnetic Properties of Three Low‐Dimensional Materials Constructed from [Cu2(dmpzpo)2]2+ and [M(CN)2/4]–/2– (M = Ag or Ni) Precursors (Hdmpzpo = 1,3‐bis(3,5‐dimethylpyrazol‐1‐yl)propan‐2‐ol)

Zhang, Guo‐Fang; Zhou, Qiuping; Dou, Y.-L.; Wang, Yao; Ling, Wu

doi:10.1002/zaac.200700248

Cited by 5 publications

(4 citation statements)

References 25 publications

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“…As the temperature decreases, χ p T rapidly decreases from 300 to about 170 K, and below this decrease it becomes slower until approximately 50 K. This kind of magnetic behavior is consistent with the presence of a significant antiferromagnetic coupling between the two oxygen-bridged Cu(II) ions. 37 , 45 , 73 − 76 In fact, the [Ni(CN) 4 ] 2– linkers can only provide very weak magnetic interactions (see the Theoretical Calculations section), so strong antiferromagnetic coupling is predicted to be mediated by the μ-O-alkoxo bridges.…”

Section: Resultsmentioning

confidence: 99%

“…Systemic research has been conducted on the coordination polymers driven by the [M(CN) x ] (M = Fe, Co, Ni, Cu, or Pd; x = 4 or 6) linkers . In this context, cyanometalate anions including [Fe(CN) 6 ] 3– , − [Co(CN) 6 ] 3– , ,− [Ni(CN) 4 ] 2– , − or [Pd(CN) 4 ] 2– ,, are particularly interesting given their ability to connect to other metal centers through a different number of cyanide groups, producing magnetically attractive heterometallic systems. However, the use of square-planar building blocks such as tetracyanonickellate(II) anions in the design of heterometallic systems containing multidentate aminoalcohols as stabilizing ligands has been underexplored.…”

Section: Introductionmentioning

confidence: 99%

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Alkoxy-Bridged Dicopper(II) Cores Meet Tetracyanonickelate Linkers: Structural, Magnetic, and Theoretical Investigation of Cu/Ni Coordination Polymers

Costa,

Franco,

Nesterov

et al. 2024

J. Phys. Chem. C

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Two heterometallic Cu(II)/Ni(II) coordination polymers, [Cu 2 (Hbdea) 2 Ni(CN) 4 ] n (1) and [Cu 2 (dmea) 2 Ni-(CN) 4 ] n •nH 2 O ( 2), were successfully self-assembled in water by reacting Cu(II) nitrate with H 2 bdea (N-butyldiethanolamine) and Hdmea (N,N-dimethylethanolamine) in the presence of sodium hydroxide and [Ni(CN) 4 ] 2− . These new coordination polymers were investigated by single-crystal and powder X-ray diffraction and fully characterized by FT-IR spectroscopy, thermogravimetry, elemental analysis, variable-temperature magnetic susceptibility measurements, and theoretical DFT and CASSCF calculations. Despite differences in crystal systems, in both compounds, each dinuclear building block [Cu 2 (μ-aminopolyalcoholate) 2 ] 2+ is bridged by diamagnetic [Ni(CN) 4 ] 2− linkers, resulting in 1D (1) or 2D (2) metal−organic architectures. Experimental magnetic studies show that both compounds display strong antiferromagnetic coupling (J = −602.1 cm −1 for 1 and −151 cm −1 for 2) between Cu(II) ions within the dimers mediated by the μ-O-alkoxo bridges. These results are corroborated by the broken symmetry DFT studies, which also provide further insight into the electronic structures of copper dimeric units. By reporting a facile self-assembly synthetic protocol, this study can be a model to widen a still limited family of heterometallic Cu/Ni coordination polymer materials with different functional properties.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Alkoxy-Bridged Dicopper(II) Cores Meet Tetracyanonickelate Linkers: Structural, Magnetic, and Theoretical Investigation of Cu/Ni Coordination Polymers

Costa,

Franco,

Nesterov

et al. 2024

J. Phys. Chem. C

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“…Our interests have been focused on the design and syntheses of flexible N,O,N ligands derived from pyrazoles and triazoles since a certain flexibility might afford coordination versitality of the ligands. We have therefore designed and synthesized a number of such ligands as well as their transition-metal complexes Zhang, Yin et al, 2006;Zhang, Zhou et al, 2007). Here we report on the structure of a new N,O,N tridentate ligand, 2-(benzotriazolylmethylamino)benzoic acid.…”

Section: S1 Commentmentioning

confidence: 99%

“…For related literature, see: Trofimenko (1993); ; Zhang et al (2006); Zhang, Zhou et al (2007). Mo K radiation = 0.10 mm À1 T = 291 (2) K 0.19 Â 0.16 Â 0.07 mm…”

Section: Related Literaturementioning

confidence: 99%

2-(Benzotriazol-1-ylmethylamino)benzoic acid

2008

Self Cite

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The title compound, C14H12N4O2, a new N,O,N′-tridentate ligand, is V-shaped with the mean plane through the benzotriazole system [planar to within 0.013 (2) Å] inclined by 67.7 (1)° to the mean plane through the benzene ring. In the molecule there is an intramolecular N—H⋯O hydrogen bond involving the amine H atom and the carbonyl O atom. In the crystal structure, symmtry-related molecules are connected by intermolecular O—H⋯N and C—H⋯O hydrogen bonds and C—H⋯π interactions.

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Synthesis, Crystal Structure, and Characterization of three New Letrozole Complexes

Tang

Zhou

Huang

et al. 2011

Zeitschrift anorg allge chemie

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Three new letrozole complexes {[Cu(Le)4Cl2]·(H2O)} (1), {[Ni(Le)4Cl2]·(H2O)}(2) and {[Co(Le)4Cl2]·(H2O)} (3) (Le = letrozole = 1‐[bis(4‐cyanophenyl)methyl]‐1, 2, 4‐triazole) were obtained from self‐assembly of CuCl2, NiCl2·6H2O, and CoCl2·6H2O with medicine letrozole. All compounds were characterized by IR spectroscopy, elemental, single‐crystal as well as powder X‐ray diffraction, and thermogravimetric analyses. The analyses of the structures indicate that all crystals belong to monoclinic system, space group C2/c, for complex 1 with crystal data a = 34.501(18) Å, b = 12.724(7) Å, c = 16.116(9) Å, β = 114.958(7) °, V = 6414(6) Å 3, Z = 4, F(000) = 2660, R1 = 0.0668, wR2 = 0.1574; for complex 2, a = 34.769(6) Å, b = 12.7267(18) Å, c = 16.046(2) Å, β = 115.281(3) °, V = 6420.1(16) Å 3, Z = 4, F(000) = 2656, R1 = 0.0510, wR2 = 0.0896; for complex 3, a = 35.063(8) Å,b = 12.658(3) Å, c = 16.056(4) Å, β = 115.387(3) °, V = 6438(2) Å3, Z = 4, F(000) = 2652, R1 = 0.0528, wR2 = 0.1205. The local arrangements around central metal atoms (CuII, NiII, and CoII) can be best described as distorted octahedra which are constructed by two chlorine atoms and four monodentate nitrogen atoms from different letrozole ligands. XRD results of 1–3 show that all peaks displayed in the measured patterns at room temperature closely match those in the simulated patterns generated from single‐crystal diffraction data, indicating single phases of 1–3 were formed.

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Syntheses, Crystal Structures and Magnetic Properties of Three Low‐Dimensional Materials Constructed from [Cu₂(dmpzpo)₂]²⁺ and [M(CN)_2/4]^–/2– (M = Ag or Ni) Precursors (Hdmpzpo = 1,3‐bis(3,5‐dimethylpyrazol‐1‐yl)propan‐2‐ol)

Cited by 5 publications

References 25 publications

Alkoxy-Bridged Dicopper(II) Cores Meet Tetracyanonickelate Linkers: Structural, Magnetic, and Theoretical Investigation of Cu/Ni Coordination Polymers

Alkoxy-Bridged Dicopper(II) Cores Meet Tetracyanonickelate Linkers: Structural, Magnetic, and Theoretical Investigation of Cu/Ni Coordination Polymers

2-(Benzotriazol-1-ylmethylamino)benzoic acid

Synthesis, Crystal Structure, and Characterization of three New Letrozole Complexes

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