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Bade TS, Ebrahimi HP, Alsalim TA, Titinchi SJ, Abbo HS, Bolandnazar Z, Ebrahimi A. A novel series of 1, 4-Dihydropyridine (DHP) derivatives bearing thiazolidin-4-one: From synthesis to structure. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.03.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Swarnalatha K, Kamalesu S, Subramanian R. Mono and binuclear ruthenium(II) complexes containing 5-chlorothiophene-2-carboxylic acid ligands: Spectroscopic analysis and computational studies. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.07.048] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Shaghaghi H, Ebrahimi HP, Fathi F, Bahrami Panah N, Jalali-Heravi M, Tafazzoli M. A simple graphical approach to predict local residue conformation using NMR chemical shifts and density functional theory. J Comput Chem 2016; 37:1296-305. [DOI: 10.1002/jcc.24323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 11/25/2015] [Accepted: 01/17/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Hoora Shaghaghi
- Department of Radiology; University of Pennsylvania; Philadelphia Pennsylvania 19104
| | - Hossein Pasha Ebrahimi
- Department of Biochemistry and National Magnetic Resonance Facility at Madison; University of Wisconsin-Madison; Wisconsin
| | - Fariba Fathi
- Department of Chemistry; Sharif University of Technology; Tehran Iran
| | | | - Mehdi Jalali-Heravi
- Department of Chemistry and Biochemistry; California State University; Los Angeles California
| | - Mohsen Tafazzoli
- Department of Chemistry; Sharif University of Technology; Tehran Iran
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Metal-based biologically active azoles and β-lactams derived from sulfa drugs. Bioorg Med Chem 2016; 24:1121-31. [DOI: 10.1016/j.bmc.2016.01.041] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 01/13/2016] [Accepted: 01/20/2016] [Indexed: 11/23/2022]
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Chung LW, Sameera WMC, Ramozzi R, Page AJ, Hatanaka M, Petrova GP, Harris TV, Li X, Ke Z, Liu F, Li HB, Ding L, Morokuma K. The ONIOM Method and Its Applications. Chem Rev 2015; 115:5678-796. [PMID: 25853797 DOI: 10.1021/cr5004419] [Citation(s) in RCA: 752] [Impact Index Per Article: 83.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Lung Wa Chung
- †Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - W M C Sameera
- ‡Fukui Institute for Fundamental Chemistry, Kyoto University, 34-4 Takano Nishihiraki-cho, Sakyo, Kyoto 606-8103, Japan
| | - Romain Ramozzi
- ‡Fukui Institute for Fundamental Chemistry, Kyoto University, 34-4 Takano Nishihiraki-cho, Sakyo, Kyoto 606-8103, Japan
| | - Alister J Page
- §Newcastle Institute for Energy and Resources, The University of Newcastle, Callaghan 2308, Australia
| | - Miho Hatanaka
- ‡Fukui Institute for Fundamental Chemistry, Kyoto University, 34-4 Takano Nishihiraki-cho, Sakyo, Kyoto 606-8103, Japan
| | - Galina P Petrova
- ∥Faculty of Chemistry and Pharmacy, University of Sofia, Bulgaria Boulevard James Bourchier 1, 1164 Sofia, Bulgaria
| | - Travis V Harris
- ‡Fukui Institute for Fundamental Chemistry, Kyoto University, 34-4 Takano Nishihiraki-cho, Sakyo, Kyoto 606-8103, Japan.,⊥Department of Chemistry, State University of New York at Oswego, Oswego, New York 13126, United States
| | - Xin Li
- #State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zhuofeng Ke
- ∇School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Fengyi Liu
- ○Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Hai-Bei Li
- ■School of Ocean, Shandong University, Weihai 264209, China
| | - Lina Ding
- ▲School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Keiji Morokuma
- ‡Fukui Institute for Fundamental Chemistry, Kyoto University, 34-4 Takano Nishihiraki-cho, Sakyo, Kyoto 606-8103, Japan
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Ebrahimi HP, Hadi JS, Alsalim TA, Ghali TS, Bolandnazar Z. A novel series of thiosemicarbazone drugs: from synthesis to structure. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:1067-1077. [PMID: 25291504 DOI: 10.1016/j.saa.2014.08.146] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 07/25/2014] [Accepted: 08/31/2014] [Indexed: 06/03/2023]
Abstract
A new series of thiosemicarbazones (TSCs) and their 1,3,4-thiadiazolines (TDZs) containing acetamide group have been synthesized from thiosemicarbazide compounds by the reaction of TSCs with cyclic ketones as well as aromatic aldehydes. The structures of newly synthesized 1,3,4-thiadiazole derivatives obtained by heterocyclization of the TSCs with acetic anhydride were experimentally characterized by spectral methods using IR, (1)H NMR, (13)C NMR and mass spectroscopic methods. Furthermore, the structural, thermodynamic, and electronic properties of the studied compounds were also studied theoretically by performing Density Functional Theory (DFT) to access reliable results to the experimental values. The molecular geometry, the highest occupied molecular orbital (HOMO), the lowest unoccupied molecular orbital (LUMO) and Mulliken atomic charges of the studied compounds have been calculated at the B3LYP method and standard 6-31+G(d,p) basis set starting from optimized geometry. The theoretical (13)C chemical shift results were also calculated using the gauge independent atomic orbital (GIAO) approach and their respective linear correlations were obtained.
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Affiliation(s)
- Hossein Pasha Ebrahimi
- Department of Biochemistry and National Magnetic Resonance Facility at Madison (NMRFAM), University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Jabbar S Hadi
- Department of Chemistry, College of Education for Pure Science, University of Basrah, Basrah, Iraq.
| | - Tahseen A Alsalim
- Department of Chemistry, College of Education for Pure Science, University of Basrah, Basrah, Iraq.
| | - Thaer S Ghali
- Department of Chemistry, College of Education for Pure Science, University of Basrah, Basrah, Iraq
| | - Zeinab Bolandnazar
- David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA
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Ebrahimi HP, Hadi JS, Abdulnabi ZA, Bolandnazar Z. Spectroscopic, thermal analysis and DFT computational studies of salen-type Schiff base complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 117:485-492. [PMID: 24021948 DOI: 10.1016/j.saa.2013.08.044] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Revised: 08/05/2013] [Accepted: 08/08/2013] [Indexed: 06/02/2023]
Abstract
A new series of metal(II) complexes of Co(II), Ni(II), Cu(II), Zn(II), and Pb(II) have been synthesized from a salen-type Schiff base ligand derived from o-vanillin and 4-methyl-1,2-phenylenediamine and characterized by elemental analysis, spectral (IR, UV-Vis, (1)H NMR, (13)C NMR and EI-mass), molar conductance measurements and thermal analysis techniques. Coats-Redfern method has been utilized to calculate the kinetic and thermodynamic parameters of the metal complexes. The molecular geometry, Mulliken atomic charges of the studied compounds were investigated theoretically by performing density functional theory (DFT) to access reliable results to the experimental values. The theoretical (13)C chemical shift results of the studied compounds have been calculated at the B3LYP, PBEPBE and PW91PW91 methods and standard 6-311+G(d,p) basis set starting from optimized geometry. The comparison of the results indicates that B3LYP/6-311+G(d,p) yields good agreement with the observed chemical shifts. The measured low molar conductance values in DMF indicate that the metal complexes are non-electrolytes. The spectral and thermal analysis reveals that all complexes have octahedral geometry except Cu(II) complex which can attain the square planner arrangement. The presence of lattice and coordinated water molecules are indicated by thermograms of the complexes. The thermogravimetric (TG/DTG) analyses confirm high stability for all complexes followed by thermal decomposition in different steps.
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Affiliation(s)
- Hossein Pasha Ebrahimi
- Department of Biochemistry and National Magnetic Resonance Facility at Madison (NMRFAM), University of Wisconsin-Madison, Madison, WI 53706, USA
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Ebrahimi H, Hadi J, Al-Ansari H. A new series of Schiff bases derived from sulfa drugs and indole-3-carboxaldehyde: Synthesis, characterization, spectral and DFT computational studies. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.01.063] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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