Synthesis, structures and magnetic properties of nicotinato-copper(II) complexes with polybenzimidazole and polyamine ligands

Nie, Feng‐Mei; Lu, Feng; Wang, Shuangyan; Jia, Meiye; Dong, Zhang

doi:10.1016/j.ica.2010.09.038

Cited by 12 publications

(4 citation statements)

References 42 publications

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“…The bond angles of the tertiary amine with the three primary amine N atomsare in the range of 83.4(1) -85.0(1)°for Cu1 and 83.2(1) -84.3(1)°for Cu2. The striking feature of the complex is that nicotinate coordinates to Cu(II) via the pyridine Natom,not by the carboxylate Oatom as found in reported complexes [6]. …”

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confidence: 55%

Crystal structure of (tris(2-aminoethyl)amine-N,N',N'')- (nicotinate-N)copper(II) tetrafluoroborate hydrate, [Cu(C6H18N4)(C6H4NO2)][BF4] · H2O

Jia¹,

Zhou²,

Wang³

et al. 2011

Zeitschrift Für Kristallographie - New Crystal Structures

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Source of materialAm ethanol solution (25 ml) of tris(2-aminoethyl)amine (tren, 0.073 g, 0.5 mmol) was added to as tirred methanol solution (30 ml) containing Cu(C 5 NH 4 COO) 2 × 2H 2 O(0.173 g, 0.5mmol) with the formation of ablue solution. After half an hour, NaBF 4 (0.055 g, 0.5m mol) in methanol solution (20 ml) was added dropwise. The mixture was refluxed for 2hand then filtered. The filtrate was left for slow evaporation at room temperature. Blue block-shaped crystals were formed after two weeks (0.302 g, yield 70 %).The Flack parameter of 0.04(1) confirms the absolute structure. Elemental analysis -found: C, 33.36 %; H, 5.53 %; N, 15.88 %. calculated forC 12 H 24 BCuF 4 N 10 O 6 :C ,3 3.00 %;H, 5.54 %; N, 16.04 %. DiscussionTransition metal complexes of tris(2-aminoethyl)amine have been extensively investigated due to their rich structural chemistry and potential applications in biological systemsa nd optical materials. Reactions of tris(2-aminoethyl)amine with copper(II) salts give out half-open, butterfly-shaped, nest-shaped complexes [1][2][3][4]. The asymmetric unit of the title crystal structure consists of two [Cu(tren)(nic)] + cations, two BF 4 -anions and two water molecules. The cations are crystallographically independent but chemically very similar with slight difference in bond distances and bond angles, identified as Cu1 and Cu2.T he Cu atomsa re both coordinated by four Na tomso ft ren and the Na tom of .The equatorial bond angles are ÐN3-Cu1-N4=1 10.9(1)°, ÐN4-Cu1-N2= 112.02(9)°and ÐN2-Cu1-N3 =1 34.1(1)°which are also very close to those of Cu2 (ÐN9-Cu2-N7 =1 08.6(1)°), ÐN8-Cu2-N9 =1 13.2(1)°, ÐN7-Cu2-N8 =1 34.8(1)°). The bond angles of the tertiary amine with the three primary amine N atomsare in the range of 83.4(1) -85.0(1)°for Cu1 and 83.2(1) -84.3(1)°for Cu2. The striking feature of the complex is that nicotinate coordinates to Cu(II) via the pyridine Natom,not by the carboxylate Oatom as found in reported complexes [6].

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confidence: 55%

Crystal structure of (tris(2-aminoethyl)amine-N,N',N'')- (nicotinate-N)copper(II) tetrafluoroborate hydrate, [Cu(C6H18N4)(C6H4NO2)][BF4] · H2O

Jia¹,

Zhou²,

Wang³

et al. 2011

Zeitschrift Für Kristallographie - New Crystal Structures

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“…Each of the complexes exhibits a broad band in the 3000–3500 cm –1 region, which may be ascribed to ν(N–H), ν(C–H), and ν(O–H) vibrations 35,36. The ν as (COO – ) and the ν s (COO – ) are assigned to the strong bands in the range 1450–1580 cm –1 .…”

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confidence: 97%

Structures and Fluorescent Properties of Cadmium(II) Complexes with 1D and 2D Structures Based on Tridentate Benzimidazole Ligands

Feng

Hou

et al. 2015

Zeitschrift anorg allge chemie

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“…The structure is similar to other trigonal bipyramidal copper complexes of tris(2-aminoethyl)amine with a pyridine ligand. [60][61][62][63][64] 4.1.5. [Cd(tren)(AMP)](ClO 4 ) 2 (10).…”

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confidence: 99%

Complexation of drug amifampridine with Cu(ii), Zn(ii) and Cd(ii) ions, and its dimerization with the magic of Mn(ii) salts. Potential anti-COVID-19 and anticancer activities

Hajibabaei,

Movafagh,

Salehzadeh

et al. 2024

Dalton Trans.

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Synthesis, structures and magnetic properties of nicotinato-copper(II) complexes with polybenzimidazole and polyamine ligands

Cited by 12 publications

References 42 publications

Crystal structure of (tris(2-aminoethyl)amine-N,N',N'')- (nicotinate-N)copper(II) tetrafluoroborate hydrate, [Cu(C6H18N4)(C6H4NO2)][BF4] · H2O

Crystal structure of (tris(2-aminoethyl)amine-N,N',N'')- (nicotinate-N)copper(II) tetrafluoroborate hydrate, [Cu(C6H18N4)(C6H4NO2)][BF4] · H2O

Structures and Fluorescent Properties of Cadmium(II) Complexes with 1D and 2D Structures Based on Tridentate Benzimidazole Ligands

Complexation of drug amifampridine with Cu(ii), Zn(ii) and Cd(ii) ions, and its dimerization with the magic of Mn(ii) salts. Potential anti-COVID-19 and anticancer activities

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