Spectroscopic and X-ray crystal structure of 2-aminobenzimidazole-trinitrobenzene charge-transfer and 2-aminobenzimidazole-picric acid ion-pair derivatives

El‐Medani, Samir M.; Youssef, Teraze A.; Ramadan, Ramadan M.

doi:10.1016/s0022-2860(02)00474-x

Cited by 32 publications

(20 citation statements)

References 10 publications

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“…Consequently, the experimental geometric structure parameters of picrate and 8-hydroxyquinoline are nearly same with X-ray 8-HQP complex. Our theoretical results of 8-HQP can be compared with experimental results of picrate [15] and 8-hydroxyquinoline [16]. The O18-H19· · ·O36 bond and angle values are found to be 0.9535Å, 1.8965Å and 159.512 • by HF/6-31++G(d,p) set and 0.9860Å, 1.7134Å and 172.309 • by B3LYP/6-31++G(d,p) set.…”

Section: Geometrical Structure Of 8-hqpmentioning

confidence: 80%

“…Since we have not got X-ray spectra of 8-HQP compound, we have not been able to do any comparison in this context. In addition, the X-ray parameters of picrate [15] and 8-hydroxyquinoline [16] were taken in different studies. Consequently, the experimental geometric structure parameters of picrate and 8-hydroxyquinoline are nearly same with X-ray 8-HQP complex.…”

Section: Geometrical Structure Of 8-hqpmentioning

confidence: 99%

“…The other hydrogen bonding values can be seen in Table 1. For 8-HQP, theoretically the optimized geometric parameters were compared with experimental ones [15,16], as can be seen in Table 2. The bond lengths and angles determined at the DFT methods are in good agreement with the experimental data [15,16].…”

Section: Geometrical Structure Of 8-hqpmentioning

confidence: 99%

“…For 8-HQP, theoretically the optimized geometric parameters were compared with experimental ones [15,16], as can be seen in Table 2. The bond lengths and angles determined at the DFT methods are in good agreement with the experimental data [15,16]. In each calculation, bond lengths are slightly shorter or longer than those observed in the crystal [15,16].…”

Section: Geometrical Structure Of 8-hqpmentioning

confidence: 99%

See 3 more Smart Citations

Theoretical studies on molecular structure and vibrational spectra of 8-hydroxyquinolinium picrate

Başoğlu

Avcı

Atalay

et al. 2011

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Section: Geometrical Structure Of 8-hqpmentioning

confidence: 80%

Section: Geometrical Structure Of 8-hqpmentioning

confidence: 99%

Section: Geometrical Structure Of 8-hqpmentioning

confidence: 99%

Section: Geometrical Structure Of 8-hqpmentioning

confidence: 99%

See 2 more Smart Citations

Theoretical studies on molecular structure and vibrational spectra of 8-hydroxyquinolinium picrate

Başoğlu

Avcı

Atalay

et al. 2011

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…8 The BIZ cation (C7H7N2 + ) is protonated on N3 atom of the imidazole moiety through a proton transfer from an OH group of CLA. An interaction between adjacent layers of CLA exhibit a p·p stacking mode (Fig.3S).ThedihedralanglebetweentheinteractingCLAring planes is only 1.22 (7)˚ with an interplanar spacing between C10·C12 (3.383(16)Å) and C13·C15 (3.351(14)Å) (Fig.…”

mentioning

confidence: 99%

The Crystal Structure of Benzimidazole Complex with Chloranilic Acid Hydrate Adduct

Marfo-Owusu

Thompson

2014

X-ray Structure Analysis Online

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Synthesis, spectroscopic characterization, thermal behaviour, in vitro antimicrobial and anticancer activities of novel ruthenium tricarbonyl complexes containing monodentate V‐shaped Schiff bases

Ramadan

Elsheemy

Hassan

et al. 2017

Applied Organom Chemis

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The interaction of Ru3(CO)12 with a novel family of monodentate V‐shaped Schiff base ligands (L1–4; L1: (E)‐1‐(4‐((4‐bromobenzylidene)amino)phenyl)ethanone, L2: (E)‐1‐(3‐(4‐(dimethylamino)benzylideneamino)phenyl)ethanone, L3: (E)‐1‐(4‐(4‐(dimethylamino)benzylideneamino)phenyl)ethanone, L4: (E)‐1‐(3‐(3,4‐dimethoxybenzylideneamino)phenyl)ethanone) in air under atmospheric pressure afforded the novel complexes [Ru(CO)3(L1–4)2]. The parent ligands and their complexes were characterized using elemental analyses and spectroscopic techniques. In addition, the structure of the representative ligand L1 was determined using single‐crystal X‐ray analysis. The stereochemistry and theoretical optimization of the three‐dimensional geometry of the ligands and their complexes were justified. In vitro antimicrobial screening against bacterial stains Escherichia coli and Staphylococcus aureus and fungus Candida albicans was conducted. Cytotoxicity of the compounds as anti‐tumour agents was evaluated against liver carcinoma (HepG2), breast carcinoma (MCF7) and colon carcinoma (HCT‐116) cell lines relative to cisplatin and doxorubicin. The complexes showed variable in vitro cytotoxic activities against the three studied cell lines, with IC50 values less than those of cis‐platin, and thus appear to be building blocks for promising anti‐tumour agents.

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Spectroscopic and X-ray crystal structure of 2-aminobenzimidazole-trinitrobenzene charge-transfer and 2-aminobenzimidazole-picric acid ion-pair derivatives

Cited by 32 publications

References 10 publications

Theoretical studies on molecular structure and vibrational spectra of 8-hydroxyquinolinium picrate

Theoretical studies on molecular structure and vibrational spectra of 8-hydroxyquinolinium picrate

The Crystal Structure of Benzimidazole Complex with Chloranilic Acid Hydrate Adduct

Synthesis, spectroscopic characterization, thermal behaviour, in vitro antimicrobial and anticancer activities of novel ruthenium tricarbonyl complexes containing monodentate V‐shaped Schiff bases

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