V-shaped ligand bis(2-benzimidazolylmethyl)amine containing three copper(ii) ternary complexes: synthesis, structure, DNA-binding properties and antioxidant activity

Wu, Huilu; Wang, Hua; Wang, Xiaoli; Pan, Guolong; Shi, Furong; Zhang, Yanhui; Bai, Yuchen; Kong, Jin

doi:10.1039/c3nj01145c

Cited by 66 publications

(21 citation statements)

References 55 publications

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“…The absorption bands ν as (COO – ) and ν s (COO – ) of the Ni II ‐Ce III complex are 1570 and 1465 cm –1 . The data of Δν = 105 cm –1 suggest that the carboxylate group of bdc 2– in the Ni II ‐Ce III complex are bidentate ligand 6j…”

Section: Resultsmentioning

confidence: 93%

A Novel Self‐assembled Nickel(II)‐Cerium(III) Heterotetranuclear Dimer Constructed from N₂O₂‐type Bisoxime and Terephthalic Acid: Synthesis, Structure, and Photophysical Properties

Wang

Dong

et al. 2016

Zeitschrift anorg allge chemie

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By self-assembly of a Salamo-type ligand H 2 L [H 2 L = 1,2bis(3-methoxysalicylideneaminooxy)ethane] with Ni(OAc) 2 ·4H 2 O, Ce(NO 3 ) 3 ·6H 2 O, and H 2 bdc (H 2 bdc = terephthalic acid), a novel Ni II -Ce III heterometallic complex, [{Ni(L)Ce(NO 3 ) 2 (CH 3 OH) (DMF)} 2 (bdc)], was obtained. Two crystallographically equivalent 834[Ni(L)Ce(NO 3 ) 2 (CH 3 OH)(DMF)] moieties lie in the inversion center, and are linked by one bdc 2ligand leading to a heterotetranuclear dimer, in which the carboxylato group bridges the Ni II and Ce III atoms. Moreover, the photophysical properties of the Ni II -Ce III complex were studied.

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Section: Resultsmentioning

confidence: 93%

A Novel Self‐assembled Nickel(II)‐Cerium(III) Heterotetranuclear Dimer Constructed from N₂O₂‐type Bisoxime and Terephthalic Acid: Synthesis, Structure, and Photophysical Properties

Wang

Dong

et al. 2016

Zeitschrift anorg allge chemie

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“…The ligand bis(benzimidazol-2-yl-methyl)amine (bbma), which have proven to be appropriate model compounds of histidine. A number of mono-nuclear copper complexes with the above ligands have been reported [1][2][3][4][5][6]. To the best of our knowledge, copper(II) complexes of bbma by using dianions of the phthalic acid as coligands have never been reported before.…”

Section: Discussionmentioning

confidence: 97%

Crystal structure of [bis(benzimidazol-2-yl-methyl)amine-κ3N,N',N''] phthalato-κ2O,O' copper(II) — methanol— water (1:1:2), C25H27CuN5O7

Liu

Chen

et al. 2015

Zeitschrift Für Kristallographie - New Crystal Structures

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Source of materialA methanol solution (25 mL) containing of Cu(ClO 4 ) 2 ×6H 2 O (0.075 g, 0.2 mmol) and bis(benzimidazol-2-yl-methyl)amine (bbma, 0.058g, 0.2 mmol) was stirred half an hour, then phthalic acid (0.033g, 0.2 mmol) and triethylamine (0.041g, 0.4 mmol) mixed in 5 mL methanol were added dropwise. After refluxing for 3 hours, the solution was filtered and allowed to stand at room temperature for slow evaporation. Blue crystals suitable for Xray structure determination were formed. Experimental detailsAtom N5 and N6 are disordered with an occupancy ratio of 0.842(4) and 0.158(4) (For clarity the split positions with the lower occupancy are not shown in the figure). DiscussionNowadays the design and synthesis of coordination complexes based on the N-donor and O-donor mixed ligands have become the focus of current investigation. Phthalic acid (1,2-BDC) is a starting material that is widely used for the synthesis of inorganicorganic hybrid materials because of its versatile coordination modes and its potential ability to form H-bond. The ligand bis(benzimidazol-2-yl-methyl)amine (bbma), which have proven to be appropriate model compounds of histidine. A number of mono-nuclear copper complexes with the above ligands have been reported [1][2][3][4][5][6]. To the best of our knowledge, copper(II) complexes of bbma by using dianions of the phthalic acid as coligands have never been reported before. The title compound contains the monomeric [Cu(bbma)(1,2-BDC)] complex, methanol solvent and two water molecules. The Cu1 ion is five-coordinated by three N atoms (N1, N3, N5) of bbma and two oxygen atoms (O1, O2) of one carboxylate group, showing a distorted {CuN 3 O 2 } square pyramidal geometry with t value to be 0.19. The basal plane is formed by two benzimidazole nitrogen atoms (N1, N3), one secondary amine nitrogen atom (N5) of bbma and one oxygen atom (O1) from carboxylate group with bond distances to be 1.948(2) Å for Cu1-N1, 1.9451(19) Å for Cu1-N3, 2.053(2) Å for Cu1-N5 and 1.9634(15) Å for Cu1-O1. Another oxygen atom (O2) of the 1,2-BDC anion occupies the apical position. The distance between Cu1 and O2 is 2.5598(16) Å, which is longer than the distances of the other atoms in the coordination sphere. The distortion of the coordination environment of [Cu(bbma)(1,2-BDC)] can be illustrated by the deviation of the angles between O2, Cu1 and other atoms in basal plane. The angles around the Cu(II) ion are also measured. The angles of O2-Cu1-N1, O2-Cu1-N3, O2-Cu1-N5 and O2-Cu1-O1 are 97.17(7)°, 92.98(7)°, 128.49(8)°and 56.88(5)°, respectively. These angles deviate from regular square pyramid. The minimum angle of O2-Cu1-O1 can be explained by chelated coordination style of carboxyl. N4 atom of bbma links coordinated O2 atom and uncoordinated O4 atom to form a 2D chain structrue. The 2D chain structure is cross-linked through secondary amine nitrogen atom (N5), oxygen atom (O7) of one water molecule, oxygen atom (O5) of one methanol molecule and uncoordinated oxygen atom (O4).

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“…2), is measure according to the crystal structure [26]. The V-shaped angle (a V ) of the ligand bqad is Table 1 Crystal data, data collection and structure refinement parameters for the ligand and the complexes.…”

Section: Crystal Structure Analysismentioning

confidence: 99%

Synthesis, structure and superoxide dismutase-like activity of copper(II) complexes based on N,N′-bis(2-quinolinylmethyl)amantadine

et al. 2015

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V-shaped ligand bis(2-benzimidazolylmethyl)amine containing three copper(ii) ternary complexes: synthesis, structure, DNA-binding properties and antioxidant activity

Abstract: V-shaped ligand bis(2-benzimidazolylmethyl)amine containing three copper(II) ternary complexes: synthesis, structure, DNA-binding properties and antioxidant activity †

Cited by 66 publications

References 55 publications

A Novel Self‐assembled Nickel(II)‐Cerium(III) Heterotetranuclear Dimer Constructed from N₂O₂‐type Bisoxime and Terephthalic Acid: Synthesis, Structure, and Photophysical Properties

A Novel Self‐assembled Nickel(II)‐Cerium(III) Heterotetranuclear Dimer Constructed from N₂O₂‐type Bisoxime and Terephthalic Acid: Synthesis, Structure, and Photophysical Properties

Crystal structure of [bis(benzimidazol-2-yl-methyl)amine-κ3N,N',N''] phthalato-κ2O,O' copper(II) — methanol— water (1:1:2), C25H27CuN5O7

Synthesis, structure and superoxide dismutase-like activity of copper(II) complexes based on N,N′-bis(2-quinolinylmethyl)amantadine

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V-shaped ligand bis(2-benzimidazolylmethyl)amine containing three copper(ii) ternary complexes: synthesis, structure, DNA-binding properties and antioxidant activity

Abstract: V-shaped ligand bis(2-benzimidazolylmethyl)amine containing three copper(II) ternary complexes: synthesis, structure, DNA-binding properties and antioxidant activity †

Cited by 66 publications

References 55 publications

A Novel Self‐assembled Nickel(II)‐Cerium(III) Heterotetranuclear Dimer Constructed from N2O2‐type Bisoxime and Terephthalic Acid: Synthesis, Structure, and Photophysical Properties

A Novel Self‐assembled Nickel(II)‐Cerium(III) Heterotetranuclear Dimer Constructed from N2O2‐type Bisoxime and Terephthalic Acid: Synthesis, Structure, and Photophysical Properties

Crystal structure of [bis(benzimidazol-2-yl-methyl)amine-κ3N,N',N''] phthalato-κ2O,O' copper(II) — methanol— water (1:1:2), C25H27CuN5O7

Synthesis, structure and superoxide dismutase-like activity of copper(II) complexes based on N,N′-bis(2-quinolinylmethyl)amantadine

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A Novel Self‐assembled Nickel(II)‐Cerium(III) Heterotetranuclear Dimer Constructed from N₂O₂‐type Bisoxime and Terephthalic Acid: Synthesis, Structure, and Photophysical Properties

A Novel Self‐assembled Nickel(II)‐Cerium(III) Heterotetranuclear Dimer Constructed from N₂O₂‐type Bisoxime and Terephthalic Acid: Synthesis, Structure, and Photophysical Properties