1
|
Ang PL, Nguyen VH, Yip JHK. Hetero- and homoleptic binuclear gold(I)-thiolate and -halide complexes - ligand exchange kinetics and supramolecular structures. Dalton Trans 2022; 51:3081-3095. [PMID: 35113094 DOI: 10.1039/d1dt04245a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heteroleptic and homoleptic binuclear Au(I) complexes [Au2(μ-PAnP)(SPh)(X)] (X = Cl- or Br-), [Au2(μ-PAnP)(SPh)2] and [Au2(μ-PAnP)(SPhCO2H)2] (SPh = benzenethiolate and SPhCO2H = 4-thiolatobenzoic acid) containing the bridging diphosphine, 9,10-bis(diphenylphosphino)anthracene (PAnP), were synthesized and characterized by single crystal X-ray diffraction. [Au2(μ-PAnP)(SPh)2] exists as a monomer in its crystals but [Au2(μ-PAnP)(SPhCO2H)2] polymerizes into zig-zag chains via intermolecular hydrogen bonding. [Au2(μ-PAnP)(SPh)(Cl)] forms cyclophane-like dimers of Ci symmetry in crystals via intermolecular aurophilic interactions (Au-Au distance = 3.3081(5) Å). Recrystallization of [Au2(μ-PAnP)(SPh)(Br)] invariably led to crystals composed of [Au2(μ-PAnP)(SPh)(Br)] and [Au2(μ-PAnP)(Br)2]. Despite the chemically different P atoms in the heteroleptic [Au2(μ-PAnP)(SPh)(Cl)] and [Au2(μ-PAnP)(SPh)(Br)], solutions of the complexes show only a single signal in their 31P{1H} NMR spectra at room temperature which resolved into two singlets of equal intensity at 183 K. Identical signals which show the same thermal behavior were observed in solutions of [Au2(μ-PAnP)(SPh)2] and [Au2(μ-PAnP)(X)2] in 1 : 1 molar ratios, indicating that there are three exchanging species, [Au2(μ-PAnP)(SPh)(X)], [Au2(μ-PAnP)(SPh)2] and [Au2(μ-PAnP)(X)2], in solution. A solution of [Au2(μ-PAnP)(Cl)2] and [Au2(μ-PAnP)(Br)2] in 1 : 1 molar ratio shows two singlets, implying that the exchange is not due to the dissociation of either PAnP or halide ligands, but rather it involves the exchange of the thiolate and the halide ligands (SPh- ↔ X-). A mixture of [(PPh3)Au(SPh)] and [(PPh3)Au(Cl)] (1 : 1 molar ratio) showed only one signal in its room temperature 31P{1H} NMR spectrum, indicating that the ligand exchange can happen intermolecularly. Self-exchange of SPh- ligands is possible as the room temperature 31P NMR spectrum of a mixture of [Au2(μ-PAnP)(SPh)2] and [Au2(μ-PAnP)(SPhCO2H)2] displayed only one signal. The rate constants of the exchange were determined by fitting the line shapes of the 31P NMR signals at different temperatures. The activation energies (Eas), obtained from Arrhenius plots, for the SPh- ↔ Cl- and SPh- ↔ Br- exchange are 36.9 ± 0.7 and 33.7 ± 1.0 kJ mol-1, respectively. The activation enthalpy and activation entropy, obtained from Eyring plots, for the SPh- ↔ Cl- and SPh- ↔ Br- exchange are 35.0 ± 0.7 kJ mol-1 and -25.7 ± 3.2 J K-1, and 32.0 ± 1.0 kJ mol-1 and -21.8 ± 4.7 J K-1, respectively. Based on the kinetic results, two possible mechanisms were proposed for the reactions.
Collapse
Affiliation(s)
- Pau Lin Ang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
| | - Van Ha Nguyen
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
| | - John H K Yip
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
| |
Collapse
|
2
|
Faihan AS, Hatshan MR, Alqahtani AS, Nasr FA, Al-Jibori SA, Al-Janabi AS. New divalent metal ion complexes with 1,8-diaminonapthalene-2-thione: Synthesis, Spectroscopic, anti-bacterial and anticancer activity studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131291] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
3
|
Soleymani-Babadi S, Beheshti A, Nasiri E, Bahrani-Pour M, Motamedi H, Mayer P. Simple synthesis of novel magnetic silver polymer nanocomposites with a good separation capacity and intrinsic antibacterial activities with high performance. Dalton Trans 2021; 50:15538-15550. [PMID: 34651632 DOI: 10.1039/d1dt00176k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Two new coordination polymers namely, [(AgCN)4LS]n (1) and [(AgCN)3LN]n (2), were successfully synthesized by the reaction of AgNO3 and cyanide as a co-anion with LS[1,1'-(hexane-1,4-diyl)bis(3-methylimidazoline-2-thione] and LN[1,1,3,3-tetrakis(3,5-dimethyl-1-pyrazole)propane] ligands in order to use them for the preparation of magnetic nanocomposites with MnFe2O4 nanoparticles by an efficient and facile method. They were then well characterized via numerous techniques, including elemental analysis, FT-IR spectroscopy, TGA, PXRD, SEM, TEM, EDX, VSM, BET, ICP, and single-crystal X-ray diffraction. The considered polymers and their magnetic nanocomposites with nearly the same antibacterial activity demonstrated a highly inhibitive effect on the growth of Gram-negative (Escherichia coli, Pseudomonas aeruginosa) and Gram-positive (Staphylococcus aureus, Bacillus subtilis) bacteria. By considering the simple separation and recyclable characters of the magnetic nanocomposites, these materials are suitable to be used in biological applications.
Collapse
Affiliation(s)
- Susan Soleymani-Babadi
- Department of Chemistry, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Azizolla Beheshti
- Department of Chemistry, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Elahe Nasiri
- Department of Chemistry, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Maryam Bahrani-Pour
- Department of Chemistry, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Hossein Motamedi
- Department of Biology, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
- Biotechnology and Biological Science Research Center, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Peter Mayer
- LMU München Department Chemie Butenandtstr, 5-13, (D)81377 München, Germany
| |
Collapse
|
4
|
Gomez‐Bonilla MA, Salazar‐Pereda V, Mendoza‐Espinosa D, Gonzalez‐Montiel S, Castañeda‐Ovando A, Rojas‐Lima S, Sandoval‐Chavez CI, Lopez‐Jímenez JA. Reactivity of 2‐mercaptopyridines with Iridium(I)‐Tris(pyrazolyl) borate complexes. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Manuel A. Gomez‐Bonilla
- Área Académica de Química Universidad Autónoma del Estado de Hidalgo Carretera Pachuca-Tulancingo Km. 4.5 Mineral de la Reforma Hidalgo 42090 Mexico
| | - Verónica Salazar‐Pereda
- Área Académica de Química Universidad Autónoma del Estado de Hidalgo Carretera Pachuca-Tulancingo Km. 4.5 Mineral de la Reforma Hidalgo 42090 Mexico
| | - Daniel Mendoza‐Espinosa
- Área Académica de Química Universidad Autónoma del Estado de Hidalgo Carretera Pachuca-Tulancingo Km. 4.5 Mineral de la Reforma Hidalgo 42090 Mexico
| | - Simplicio Gonzalez‐Montiel
- Área Académica de Química Universidad Autónoma del Estado de Hidalgo Carretera Pachuca-Tulancingo Km. 4.5 Mineral de la Reforma Hidalgo 42090 Mexico
| | - Aracely Castañeda‐Ovando
- Área Académica de Química Universidad Autónoma del Estado de Hidalgo Carretera Pachuca-Tulancingo Km. 4.5 Mineral de la Reforma Hidalgo 42090 Mexico
| | - Susana Rojas‐Lima
- Área Académica de Química Universidad Autónoma del Estado de Hidalgo Carretera Pachuca-Tulancingo Km. 4.5 Mineral de la Reforma Hidalgo 42090 Mexico
| | - Cesar I. Sandoval‐Chavez
- CONACYT Research-Fellow. Área Académica de Química Universidad Autónoma del Estado de Hidalgo Carretera Pachuca-Tulancingo Km. 4.5 Mineral de la Reforma Hidalgo 42090 Mexico
| | - Jorge A. Lopez‐Jímenez
- Departamento de Química Universidad de Guanajuato, Noria Alta S/N; C.P. 36050 Guanajuato Gto. México
| |
Collapse
|
5
|
Sadaf H, Zierkiewicz W, Michalczyk M, Ahmad S, Imtiaz-ud-Din, Tahir MN, Isab AA, Al-Arfaj AR, Nadeem S. Crystal Structure of [Pd(Imt)4]Cl2 and DFT Studies of [Pd(Imt)4]Cl2 and [Pd(Imt)2(CN)2] (Imt = Imidazolidine-2-Thione). RUSS J COORD CHEM+ 2021. [DOI: 10.1134/s107032842101005x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
6
|
Goetzfried SK, Gallati CM, Cziferszky M, Talmazan RA, Wurst K, Liedl KR, Podewitz M, Gust R. N-Heterocyclic Carbene Gold(I) Complexes: Mechanism of the Ligand Scrambling Reaction and Their Oxidation to Gold(III) in Aqueous Solutions. Inorg Chem 2020; 59:15312-15323. [PMID: 33006470 PMCID: PMC7581288 DOI: 10.1021/acs.inorgchem.0c02298] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
![]()
N-Heterocyclic carbene (NHC) gold(I) complexes offer great
prospects in medicinal chemistry as antiproliferative, anticancer,
and antibacterial agents. However, further development requires a
thorough understanding of their reaction behavior in aqueous media.
Herein, we report the conversion of the bromido[3-ethyl-4-(4-methoxyphenyl)-5-(2-methoxypyridin-5-yl)-1-propylimidazol-2-ylidene]gold(I)
((NHC)AuIBr, 1) complex in acetonitrile/water
mixtures to the bis[3-ethyl-4-(4-methoxyphenyl)-5-(2-methoxypyridin-5-yl)-1-propylimidazol-2-ylidene]gold(I)
([(NHC)2AuI]+, 7), which
is subsequently oxidized to the dibromidobis[3-ethyl-4-(4-methoxyphenyl)-5-(2-methoxypyridin-5-yl)-1-propylimidazol-2-ylidene]gold(III)
([(NHC)2AuIIIBr2]+, 9). By combining experimental data from HPLC, NMR, and (LC-)/HR-MS
with computational results from DFT calculations, we outline a detailed
ligand scrambling reaction mechanism. The key step is the formation
of the stacked ((NHC)AuIBr)2 dimer (2) that rearranges to the T-shaped intermediate Br(NHC)2AuI–AuIBr (3). The dissociation
of Br– from 3 and recombination lead
to (NHC)2AuI–AuIBr2 (5) followed by the separation into [(NHC)2AuI]+ (7) and [AuIBr2]− (8). [AuIBr2]− is not stable in an aqueous environment
and degrades in an internal redox reaction to Au0 and Br2. The latter in turn oxidizes 7 to the gold(III)
species 9. The reported ligand rearrangement of the (NHC)AuIBr complex differs from that found for related silver(I) analogous.
A detailed understanding of this scrambling mechanism is of utmost
importance for the interpretation of their biological activity and
will help to further optimize them for biomedical and other applications. By means of experimental data from HPLC
and (LC-)MS in combination with DFT calculations, we present a detailed
mechanism for the ligand scrambling reaction of (NHC)AuIBr to the corresponding [(NHC)2AuI]+ complex and the oxidation to the [(NHC)2AuIIIBr2]+ species in aqueous solutions.
Collapse
Affiliation(s)
- Sina K Goetzfried
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck, Tyrol 6020, Austria
| | - Caroline M Gallati
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck, Tyrol 6020, Austria
| | - Monika Cziferszky
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck, Tyrol 6020, Austria
| | - Radu A Talmazan
- Institute of General, Inorganic and Theoretical Chemistry, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck, Tyrol 6020, Austria
| | - Klaus Wurst
- Institute of General, Inorganic and Theoretical Chemistry, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck, Tyrol 6020, Austria
| | - Klaus R Liedl
- Institute of General, Inorganic and Theoretical Chemistry, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck, Tyrol 6020, Austria
| | - Maren Podewitz
- Institute of General, Inorganic and Theoretical Chemistry, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck, Tyrol 6020, Austria
| | - Ronald Gust
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck, Tyrol 6020, Austria
| |
Collapse
|
7
|
The di(thiourea)gold(I) complex [Au{S=C(NH2)2}2][SO3Me] as a precursor for the convenient preparation of gold nanoparticles. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2020. [DOI: 10.1515/znb-2019-0213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Abstract
The synthesis of [Au{S=C(NH2)2}2][SO3Me] (1) (a) by the anodic oxidation of gold metal in an anolyte of thiourea and methansulfonic acid and (b) by the reaction of Au(OH)3 with an aqueous solution of methanesulfonic acid in the presence of thiourea is reported. The structure of 1 in the solid state has been determined by single-crystal X-ray diffraction showing a linear S–Au–S unit with the thiourea ligands in a leaflet structure folded by 113.2(3)°. The cation of complex 1 is a dimer, based on short S · · · C interactions between two adjacent mononuclear cations. The thermal decomposition behavior of 1 was studied by TG and TG-MS confirming that it decomposes under inert gas or oxygen atmosphere in four steps in the temperature range of 200–650°C. Initial decomposition starts with the release and fragmentation of one of the thiourea ligands, followed by the anion degradation. Powder X-ray diffraction studies specified the formation of gold metal. Based on this observation, complex 1 was used as precursor for the formation of gold nanoparticles (Au NPs) in 1-hexadecylamine (c = 4.0 mol L−1) at T = 330°C without any addition of reducing agents. TEM, electron diffraction, and UV/Vis spectroscopy studies were carried out. Au NPs of size 15 ± 4 nm were formed, showing the characteristic surface plasmon resonance at 528 nm.
Collapse
|
8
|
Synthesis, spectral characterization and in vitro antibacterial evaluation and Petra/Osiris/Molinspiration analyses of new Palladium(II) iodide complexes with thioamides. ALEXANDRIA JOURNAL OF MEDICINE 2019. [DOI: 10.1016/j.ajme.2015.10.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
|
9
|
Ahmad S, Georgieva I, Hanif M, Monim-Ul-Mehboob M, Munir S, Sohail A, Isab AA. Periodic DFT modeling and vibrational analysis of silver(I) cyanide complexes of thioureas. J Mol Model 2019; 25:90. [PMID: 30847580 DOI: 10.1007/s00894-019-3970-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 02/13/2019] [Indexed: 11/30/2022]
Abstract
The structures of non-ionic [Ag(Tu)(CN)] (1) and ionic [Ag(Dmtu)2]+[Ag(CN)2]- (2) and [Ag(Imt)2]+[Ag(CN)2]- (3) silver(I) complexes, where Tu = thiourea, Dmtu = N,N'-dimethylthiourea and Imt = imidazoline-2-thione), were modeled by periodic DFT/PAW-PBE calculations; results were in good agreement with experiments. The bonding ability of the thiourea ligands (Tu, Dmtu and Imt) and the rival Ag-C, Ag-S, Ag-N and Ag-Ag bonds were estimated by natural population analysis and natural bonding orbital calculations. The metal-ligand bond strengths were found to decrease in the following order Ag-CCN > Ag-Sthiourea > Ag-NCN, and the main bonding contribution was covalent, donor-acceptor and electrostatic, respectively. The non-ionic [Ag(Tu)(CN)] complex formation [distinguished from the ionic Ag(I) complexes] was explained with the largest bonding capacity of the sulfur donor atom of Tu ligand and the strongest covalent and donor-acceptor Ag-S(Tu) interaction. The infrared (IR) spectra of the experimentally observed structures were reliably interpreted and the IR vibrations, which were sensitive to the ligand coordination to Ag(I) ion and to the weak intra- and intermolecular interactions, were selected with the help of DFT frequency calculations in the solid state. Graphical abstract Non-ionic and ionic complex formation and the different coordination polyhedra around Ag(I) in three AgCN complexes of thioureas were evaluated by natural population analysis, natural bonding orbital, charge density and electron localization function calculations. The predicted largest capacity of sulfur (Tu) for donor-acceptor interaction, the largest bridging sulfur ability for three Ag ions and the strongest covalent and donor-acceptor Ag-S(Tu)3 interactions in 1 as compared to 2 and 3 explain the formation of a non-ionic complex, i.e., the Ag(CN)2- anion is missing in 1.
Collapse
Affiliation(s)
- Saeed Ahmad
- Department of Chemistry, College of Sciences and Humanities, Prince Sattam bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia.
| | - Ivelina Georgieva
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 11 Acad. G. Bonchev Str., 1113, Sofia, Bulgaria.
| | - Muhammad Hanif
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | | | - Shaukat Munir
- Department of Chemistry, University of Engineering and Technology, Lahore, Pakistan
| | - Ahsan Sohail
- Department of Chemistry, University of Engineering and Technology, Lahore, Pakistan
| | - Anvarhusein A Isab
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| |
Collapse
|
10
|
Synthesis, spectroscopic characterization and in vitro cytotoxic as well as docking studies of cis-diammine platinum(II) complexes of thiones. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.09.070] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
11
|
Ahmad S, Saleem M, Georgieva I, Ruffer T, Schaarschmidt D, Lang H, Murtaza G, Hussain I, Habib-ur-Rehman, Isab AA, Malik MR, Ali S. Synthesis, characterization, DFT calculations and antimicrobial studies of cadmium(II) sulfate complexes of thioureas and 2-mercaptopyridine; X-ray structures of polymeric diaqua(N,N′-dimethylthiourea) sulfatocadmium(II) and bis(2-mercaptopyridine)sulfatocadmium(II). Polyhedron 2018. [DOI: 10.1016/j.poly.2018.04.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
12
|
Linear gold(I) complex with tris-(2-carboxyethyl)phosphine (TCEP): Selective antitumor activity and inertness toward sulfur proteins. J Inorg Biochem 2018; 186:104-115. [PMID: 29885553 DOI: 10.1016/j.jinorgbio.2018.04.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 03/02/2018] [Accepted: 04/02/2018] [Indexed: 12/18/2022]
Abstract
The search for modulating ligand substitution reaction in gold complexes is essential to find new active metallo compounds for medical applications. In this work, a new linear and hydrosoluble goldI complex with tris-(2-carboxyethylphosphine) (AuTCEP). The two phosphines coordinate linearly to the metal as solved by single crystal X-ray diffraction. Complete spectroscopic characterization is also reported. In vitro growth inhibition (GI50) in a panel of nine tumorigenic and one non-tumorigenic cell lines demonstrated the complex is highly selective to ovarium adenocarcinoma (OVCAR-03) with GI50 of 3.04 nmol mL-1. Moreover, non-differential uptake of AuTCEP was observed between OVCAR-03 (tumor) and HaCaT (non-tumor) two cell lines. Biophysical evaluation with the sulfur-rich biomolecules showed the compound does not interact with two types of zinc fingers, bovine serum albumin, N-acetyl-l-cysteine and also l-histidine, revealing to be inert to ligand substitution reactions with these molecules. However, AuTCEP demonstrated to cleave plasmidial DNA, suggesting DNA as a possible target. No antibacterial activity was observed in the strains evaluated. Besides, it inhibits 15% of the activity of a mixture of serine-β-lactamase and metallo-β-lactamase from Bacillus cereus in the enzymatic activity assay, similarly to EDTA. These results suggest AuTCEP is selective to metallo-β-lactamase but the cell uptake is hindered, and the compound does not reach the periplasmic space of Gram-positive bacteria. The unique inert behavior of AuTCEP is interesting and represent the modulation of the reactivity through coordination chemistry to decrease the toxicity associated with AuI complexes and its lack of specificity, generating very selective compounds with unexpected targets.
Collapse
|
13
|
Mahmood R, Ahmad S, Fettouhi M, Roisnel T, Gilani MA, Mehmood K, Murtaza G, Isab AA. 2D polymeric cadmium(II) complexes containing 1,3-imidazolidine-2-thione (Imt) ligand, [Cd(Imt)(H 2 O) 2 (SO 4 )] n and [Cd(Imt) 2 (N 3 ) 2 ] n. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.11.067] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
14
|
Jomaa MY, Altaf M, Ahmad S, Alhoshani A, Baig N, Kawde AN, Bhatia G, Singh J, Isab AA. Synthesis, characterization and anticancer evaluation of transplatin derivatives with heterocyclic thiones. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.12.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
15
|
A. Sulaiman AA, Omer KH, Kawde AN, M. Wazeer MI, Altaf M, Musa MM, Ahmad S, Isab AA. Spectroscopic and Electrochemical Studies of the Interaction of Some Gold(III) Complexes with Biologically Relevant Thiones. INT J CHEM KINET 2018. [DOI: 10.1002/kin.21149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Adam A. A. Sulaiman
- Lab Technical Support Office (LTSO); King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
| | - Khalid H. Omer
- Department of Chemistry; King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
| | - Abdel-Nasser Kawde
- Department of Chemistry; King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
| | - M. I. M. Wazeer
- Department of Chemistry; King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
| | - Muhammad Altaf
- Center of Research Excellence in Nanotechnology; King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
| | - Musa M. Musa
- Department of Chemistry; King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
| | - Saeed Ahmad
- Department of Chemistry; College of Sciences and Humanities; Prince Sattam bin Abdulaziz University; Al-Kharj 11942 Saudi Arabia
| | - Anvarhusein A. Isab
- Department of Chemistry; King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
| |
Collapse
|
16
|
Alharthi AI, Ahmad S, Rüffer T, Lang H, Alotaibi MA, Murtaza G, Isab AA. Synthesis and crystal structures of cadmium(II) complexes of 1,3-diazinane-2-thione (diaz); [Cd(diaz)4Cl2], [Cd(diaz)2(NCS)2] and [Cd(diaz)2(N3)2]. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.09.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
17
|
Nadeem S, Sirajuddin M, Ahmad S, Yaqub S, Ali MI, Tirmizi SA, Ali S, Hameed A. Synthesis, Spectral Characterization, In Vitro Antibacterial Evaluation and POM Analyses of Palladium(II) Thiocyanate Complexes of Thioamides. Pharm Chem J 2017. [DOI: 10.1007/s11094-017-1695-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
18
|
Ahmad S, Fettouhi M, Roisnel T, Alotaibi MA, Alharthi AI, Malik MR, Ahmad I, Isab AA. Structural diversity in pseudohalide complexes of cadmium(II) with N-methylthiourea (Metu): Polymeric [Cd(Metu)2(NCS)2]n versus monomeric [Cd(Metu)2(CN)2]. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1398824] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Saeed Ahmad
- Department of Chemistry, College of Sciences and Humanities, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Mohammed Fettouhi
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Thierry Roisnel
- Centre de Diffractométrie X (CDIFX), Institut des Sciences Chimiques de Rennes UMR6226 CNRS – Université de Rennes 1, Rennes Cedex, France
| | - Mshari A. Alotaibi
- Department of Chemistry, College of Sciences and Humanities, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Abdulrahman I. Alharthi
- Department of Chemistry, College of Sciences and Humanities, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | | | - Irshad Ahmad
- Department of Chemistry, Government Gordon College, Rawalpindi, Pakistan
| | - Anvarhusein A. Isab
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| |
Collapse
|
19
|
Synthesis, spectroscopic characterization and in vitro anticancer activity of new platinum(II) complexes with some thione ligands in the presence of triethylphosphine. Biometals 2017; 30:787-795. [DOI: 10.1007/s10534-017-0047-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 08/21/2017] [Indexed: 10/18/2022]
|
20
|
Synthesis and crystal structures of bis(imidazolidine-2-thione-κS)bis(thiocyanato-κS)mercury(II) and bis(cyanido)bis(μ2
-imidazolidine-2-thione-κS)mercury(II).Hg(CN)2. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2017. [DOI: 10.1515/znb-2017-0080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Two mercury(II) complexes containing imidazolidine-2-thione (Imt) and thiocyanate or cyanide ligands, [Hg(Imt)2(SCN)2] (1) and [Hg(Imt)2(CN)2].Hg(CN)2 (2), have been prepared and characterized by IR and NMR spectroscopy and X-ray crystallography. In compound 1, the mercury atom is located on a two-fold rotation axis and is coordinated to two thione sulfur atoms of imidazolidine-2-thione (Imt) and to two sulfur atoms of thiocyanate in a distorted tetrahedral mode with the S-Hg-S bond angles in the range of 98.96(3)–148.65(6)°. In 2, the mercury atom is hexa-coordinated having a distorted octahedral geometry composed of two cyanide C atoms [Hg-C=2.055(5) Å] and four weakly bound thione S atoms of imidazolidine-2-thione (Imt) [Hg-S=3.1301(13) and 3.1280(13) Å]. One free Hg(CN)2 molecule is also present in the crystal. In both complexes, the molecular structure is stabilized by N-H…N and N-H…S hydrogen bonding interactions.
Collapse
|
21
|
Synthesis, characterization, DFT calculations and antibacterial activity of palladium(II) cyanide complexes with thioamides. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.03.098] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
22
|
Faraz MM, Isab AA, Alotaibi MA, Alharthi AI, Tahir MN, Monim-ul-Mehboob M, Ahmad S. Zinc(II) complexes of 4-aminoantipyrine (AAP). Crystal structure of [Zn(AAP)2Cl2]. RUSS J INORG CHEM+ 2017. [DOI: 10.1134/s0036023617070075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
23
|
Akhtar M, Malik MR, Tahir MN, Nadeem S, Altaf M, Sohail M, Ali S, Ahmad S. Zinc halide complexes of thionicotinamide; crystal structure of dichlorido bis(thionicotinamide-κN)zinc(II). J STRUCT CHEM+ 2017. [DOI: 10.1134/s0022476617010243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
24
|
Abbehausen C, Manzano C, Corbi P, Farrell N. Effects of coordination mode of 2-mercaptothiazoline on reactivity of Au(I) compounds with thiols and sulfur-containing proteins. J Inorg Biochem 2016; 165:136-145. [DOI: 10.1016/j.jinorgbio.2016.05.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 04/13/2016] [Accepted: 05/13/2016] [Indexed: 01/01/2023]
|
25
|
Espinosa Ferao A, Afzal F, Aslam S, Muhammad IK, Ejaz, Khan IU, Fettouhi M, Isab AA, Ahmad S. Synthesis, crystal structure and DFT calculations of bis(1,3-diazinane-2-thione-κS)dicyanido disilver(I), [{Ag(Diaz)2}{Ag(CN)2}]. Polyhedron 2016. [DOI: 10.1016/j.poly.2015.10.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
26
|
Mahmood R, Hussain SG, Isab AA, Fettouhi M, Fazal A, Ahmad S. Structural characterization of tetrakis(1,3-diazinane-2-thione)cadmium(II) sulfate. J STRUCT CHEM+ 2015. [DOI: 10.1134/s0022476615030099] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
27
|
Tahir MN, Isab AA, Afzal F, Raza K, Muhammad S, Hanif M, Ahmad S, Gul T, Ahmad S. Synthesis and characterization of silver(I) complexes of thioureas and thiocyanate: crystal structure of polymeric (1,3-diazinane-2-thione)thiocyanato silver(I). ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2015. [DOI: 10.1515/znb-2014-0263] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Silver(I) complexes of thioureas and thiocyanate, [(Tu)AgSCN], [(Metu)AgSCN], [(Dmtu)AgSCN], [(Tmtu)(AgSCN)1.5], [(Imt)AgSCN], and [(Diaz)AgSCN] (where Tu = thiourea, Metu = N-methylthiourea, Dmtu = N,N′-dimethylthiourea, Tmtu = N,N,N′,N′-tetramethylthiourea, Imt = 1,3-imidazolidine-2-thione, and Diaz = 1,3-diazinane-2-thione), have been prepared and characterized by elemental analysis, IR and NMR spectroscopy, and thermal analysis. The crystal structure of one of them, [(Diaz)Ag(SCN)] (1), was determined by X-ray crystallography. The crystal structure of 1 shows that the complex exists in the form of a chain-like polymer comprising [Ag(μ
2-Diaz)(μ
2-SCN)] units. The silver atoms are bridged by μ
2-thione sulfur atoms of Diaz and μ
2-thiocyanate sulfur atoms. Thereby each silver atom adopts a distorted tetrahedral coordination environment comprising four sulfur atoms, two from thione and two from thiocyanate ligands. An upfield shift in the >C=S resonance of thiones in 13C NMR and a downfield shift in the N–H resonance in 1H NMR are consistent with the sulfur coordination to silver(I). The appearance of a band around 2100 cm–1 in the IR and a resonance around 125 ppm in the 13C NMR spectrum indicates the binding of thiocyanate to silver(I).
Collapse
Affiliation(s)
| | - Anvarhusein A. Isab
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Fozia Afzal
- Department of Chemistry, University of Engineering and Technology, Lahore 54890, Pakistan
| | - Kashif Raza
- Department of Chemistry, University of Engineering and Technology, Lahore 54890, Pakistan
| | - Shah Muhammad
- Department of Chemical Engineering, University of Engineering and Technology, Lahore 54890, Pakistan
| | - Muhammad Hanif
- Department of Chemistry, University of Engineering and Technology, Lahore 54890, Pakistan
| | - Sajjad Ahmad
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Tahira Gul
- Department of Chemistry, University of Engineering and Technology, Lahore 54890, Pakistan
| | - Saeed Ahmad
- Department of Chemistry, University of Engineering and Technology, Lahore 54890, Pakistan
| |
Collapse
|
28
|
Ahmad T, Mahmood R, Lee SC, Ahmad S. Synthesis, spectroscopic characterization, and crystal structures of copper(I) iodide clusters of N-methylthiourea and 1,3-diazinane-2-thione. RUSS J COORD CHEM+ 2014. [DOI: 10.1134/s1070328414020018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
29
|
Al-Maythalony BA, Monim-ul-Mehboob M, Altaf M, Wazeer MIM, Isab AA, Altuwaijri S, Ahmed A, Dhuna V, Bhatia G, Dhuna K, Kamboj SS. Some new [(thione)2Au(diamine)]Cl3 complexes: synthesis, spectroscopic characterization, computational and in vitro cytotoxic studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 115:641-647. [PMID: 23876928 DOI: 10.1016/j.saa.2013.06.086] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 04/28/2013] [Accepted: 06/24/2013] [Indexed: 06/02/2023]
Abstract
Recent advances in oncology are focused on developing new complexes of gold(III) with various ligands that show augmented anti-proliferative potential and reduced toxicity as compared to cis-platin. In this study, new Au(III) complexes of the type [(thione)2Au(diamine)]Cl3 are reported, where thione=1,3-imidazolidine-2-thione (Imt), 1,3-Diazinane-2-thione (Diaz) and diamine=1,2-diaminoethane (en), 1,3-diaminopropane (pn) or 1,4-diaminobutane (bn). The solid state IR as well as (13)C and (15)N NMR data indicate that Au(III) center is bonded via sulfur of thiocarbonyl SC site of the thiones and also chelated by the diamines from the trans side of coordinated thiones. Spectroscopic data are evaluated by comparisons with calculated data from the built and optimized structure by GAUSSIAN 09 at the RB3LYP level with LanL2DZ bases set. These new Au(III) complexes based on mixed thione and diamine ligands are very similar to the square planar structure of tetracoordinate [Au(en)2]Cl3complex. In this study, cytotoxicity data for these gold(III) complexes against C6 glioma cell lines are also reported, and the results indicate some complexes have cytotoxicity comparable to cis-platin.
Collapse
Affiliation(s)
- Bassem A Al-Maythalony
- Department of Chemistry, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Seerat-ur-Rehman, Isab AA, Tahir MN, Khalid T, Saleem M, Sadaf H, Ahmad S. Synthesis, crystal structure and antimicrobial studies of a thione derivative of transplatin, trans-[Pt(NH3)2(Diaz)2]Cl2·2H2O (Diaz=1,3-diazinane-2-thione). INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2013.08.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
31
|
Malik MR, Rüffer T, Lang H, Isab AA, Ali S, Ahmad S, Stoeckli-Evans H. Structural characterization of dicyanidobis-(N,N′-dimethylthiourea-κS)cadmium(II). J STRUCT CHEM+ 2013. [DOI: 10.1134/s0022476613040240] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
32
|
Ahmad S, Sadaf H, Altaf M, Stoeckli-Evans H, Seerat-ur-Rehman, Bashir SA. Crystal structures of bis(cyanido)bis(N,N′-diethylthiourea-κS) mercury(II) and bis(cyanido)bis(N,N′-dipropylthiourea-κS) mercury(II). CRYSTALLOGR REP+ 2013. [DOI: 10.1134/s1063774513050155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
33
|
Shaikh MN, Al-maythalony BA, Monim-ul-mehboob M, Fettouhi M, Wazeer MIM, Isab AA, Ahmad S. Mercury(II) cyanide complexes with alkyldiamines: solid-state/solution NMR, computational, and antimicrobial studies. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.683176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- M. Nasiruzzaman Shaikh
- a Department of Chemistry , King Fahd University of Petroleum and Minerals , Dhahran 31261 , Saudi Arabia
| | - Bassem A. Al-maythalony
- a Department of Chemistry , King Fahd University of Petroleum and Minerals , Dhahran 31261 , Saudi Arabia
| | - M. Monim-ul-mehboob
- a Department of Chemistry , King Fahd University of Petroleum and Minerals , Dhahran 31261 , Saudi Arabia
| | - Mohammed Fettouhi
- a Department of Chemistry , King Fahd University of Petroleum and Minerals , Dhahran 31261 , Saudi Arabia
| | - Mohammed I. M. Wazeer
- a Department of Chemistry , King Fahd University of Petroleum and Minerals , Dhahran 31261 , Saudi Arabia
| | - Anvarhusein A. Isab
- a Department of Chemistry , King Fahd University of Petroleum and Minerals , Dhahran 31261 , Saudi Arabia
| | - Saeed Ahmad
- b Department of Chemistry , University of Engineering and Technology , Lahore 54890 , Pakistan
| |
Collapse
|
34
|
Rüffer T, Lang H, Nawaz S, Isab AA, Ahmad S, Athar MM. Crystal structure of bis(triphenylphosphine) bis(N,N′-dibutylthiourea)silver(I) nitrate. J STRUCT CHEM+ 2011. [DOI: 10.1134/s0022476611050313] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
35
|
Malik MR, Vasylyeva V, Merz K, Metzler-Nolte N, Saleem M, Ali S, Isab AA, Munawar KS, Ahmad S. Synthesis, crystal structures, antimicrobial properties and enzyme inhibition studies of zinc(II) complexes of thiones. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.06.017] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
36
|
Altaf M, Stoeckli-Evans H, Murtaza G, Isab AA, Ahmad S, Shaheen MA. Structural characterization of a cadmium(II)-sulfato complex, [Cd(N,N′-diethyl thiourea)4(SO4)]. J STRUCT CHEM+ 2011. [DOI: 10.1134/s0022476611030267] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
37
|
Mufakkar M, Isab AA, Rüffer T, Lang H, Ahmad S, Arshad N, Waheed A. Synthesis, characterization, and antibacterial activities of copper(I) bromide complexes of thioureas: X-ray structure of [Cu(Metu)4]Br. TRANSIT METAL CHEM 2011. [DOI: 10.1007/s11243-011-9496-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
38
|
Nawaz S, Isab AA, Merz K, Vasylyeva V, Metzler-Nolte N, Saleem M, Ahmad S. Synthesis, characterization and antimicrobial studies of mixed ligand silver(I) complexes of triphenylphosphine and heterocyclic thiones: Crystal structure of bis[{(μ2-diazinane-2-thione)(diazinane-2-thione)(triphenylphosphine)silver(I) nitrate}]. Polyhedron 2011. [DOI: 10.1016/j.poly.2011.02.054] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
39
|
Isab AA, Fettouhi M, Malik MR, Ali S, Fazal A, Ahmad S. Mercury(II) cyanide complexes of thioureas and the crystal structure of [(N-methylthiourea)2 Hg(CN)2]. RUSS J COORD CHEM+ 2011. [DOI: 10.1134/s1070328411030055] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
40
|
Ajaz H, Hussain S, Altaf M, Stoeckli-Evans H, Isab AA, Mahmood R, Altaf S, Ahmad S. Synthesis and Characterization of Antimony(III) Complexes of Thioamides, and Crystal Structure of {[Sb(Imt)2Cl2]2((2-Imt)}Cl2(Imt=Imidazolidine-2-thione). CHINESE J CHEM 2011. [DOI: 10.1002/cjoc.201190074] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
41
|
Hill DT, Isab AA, Griswold DE, DiMartino MJ, Matz ED, Figueroa AL, Wawro JE, DeBrosse C, Reiff WM, Elder RC, Jones B, Webb JW, Shaw CF. Seleno-auranofin (Et3PAuSe-tagl): synthesis, spectroscopic (EXAFS, 197Au Mössbauer, 31P, 1H, 13C, and 77Se NMR, ESI-MS) characterization, biological activity, and rapid serum albumin-induced triethylphosphine oxide generation. Inorg Chem 2010; 49:7663-75. [PMID: 20704360 DOI: 10.1021/ic902335z] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Seleno-auranofin (SeAF), an analogue of auranofin (AF), the orally active antiarthritic gold drug in clinical use, was synthesized and has been characterized by an array of physical techniques and biological assays. The Mössbauer and extended X-ray absorption fine structure (EXAFS) parameters of the solid compound demonstrate a linear P-Au-Se coordination environment at a gold(I) center, analogous to the structure of auranofin. The (31)P, (13)C, and (1)H NMR spectra of SeAF in chloroform solution closely resemble those of auranofin. The (77)Se spectrum consists of a singlet at 481 ppm, consistent with a metal-bound selenolate ligand. The absence of (2)J(PSe) coupling in the (31)P and (77)Se spectra may arise from dynamic processes occurring in solution or because the (2)J(PSe) coupling constants are smaller than the observed bandwidths. Electrospray ionization mass spectrometry (ESI-MS) spectra of SeAF in 50:50 methanol-water exhibited strong signals for [(Et(3)P)(2)Au](+), [(Et(3)PAu)(2)-mu-Se-tagl](+), and [Au(Se-tagl)(2)](-), which arise from ligand scrambling reactions. Three assays of the anti-inflammatory activity of SeAF allowed comparison to AF. SeAF exhibited comparable activity in the topically administered murine arachadonic acid-induced and phorbol ester-induced anti-inflammatory assays but was inactive in the orally administered carrageenan-induced assay in rats. However, in vivo serum gold levels were comparable in the rat, suggesting that differences between the in vivo metabolism of the two compounds, leading to differences in transport to the inflamed site, may account for the differential activity in the carrageenan-induced assay. Reactions of serum albumin, the principal transport protein of gold in the serum, demonstrated formation of AlbSAuPEt(3) at cysteine 34 and provided evidence for facile reduction of disulfide bonds at cysteine 34 and very rapid formation of Et(3)P=O, a known metabolite of auranofin.
Collapse
Affiliation(s)
- David T Hill
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
|
43
|
Nadeem S, Bolte M, Ahmad S, Fazeelat T, Tirmizi SA, Rauf MK, Sattar SA, Siddiq S, Hameed A, Haider SZ. Synthesis, crystal structures and, antibacterial and antiproliferative activities in vitro of palladium(II) complexes of triphenylphosphine and thioamides. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.06.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
44
|
Isab AA, Ahmad S, Al-Arfaj AR, Akhtar MN. 13 C and 15 N NMR Studies of the Interaction of Gold(I) Thiolates with Thiourea ( 13 C and 15 N Labelled). J COORD CHEM 2010. [DOI: 10.1080/0095897021000041338] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Anvarhusein A. Isab
- a Department of Chemistry , King Fahd University of Petroleum and Minerals , Dhahran, 31261 , Saudi Arabia
| | - Saeed Ahmad
- a Department of Chemistry , King Fahd University of Petroleum and Minerals , Dhahran, 31261 , Saudi Arabia
| | - Abdul Rehman Al-Arfaj
- a Department of Chemistry , King Fahd University of Petroleum and Minerals , Dhahran, 31261 , Saudi Arabia
| | - Muhammad Naseem Akhtar
- a Department of Chemistry , King Fahd University of Petroleum and Minerals , Dhahran, 31261 , Saudi Arabia
| |
Collapse
|
45
|
Ahmad S, Rüffer T, Lang H, Nadeem S, Tirmizi SA, Saleem M, Anwar A. Synthesis, crystal structure, and antimicrobial studies of trans-[Pd(PPh3)2(imidazolidine-2-thione)2]Cl2 · 3.5H2O. RUSS J COORD CHEM+ 2010. [DOI: 10.1134/s1070328410070079] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
46
|
Synthesis, characterization and antibacterial activity of palladium(II) bromide complexes of thioamides; X-ray structure of [Pd(tetramethylthiourea)4]Br2. TRANSIT METAL CHEM 2010. [DOI: 10.1007/s11243-010-9363-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
47
|
Synthesis, characterization and antimicrobial studies of mixed ligand silver(I) complexes of thioureas and triphenylphosphine; crystal structure of {[Ag(PPh3)(thiourea)(NO3)]2·[Ag(PPh3)(thiourea)]2(NO3)2}. Polyhedron 2010. [DOI: 10.1016/j.poly.2009.12.037] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
48
|
Ali S, Malik MR, Isab AA, Ahmad S. Synthesis and spectroscopic characterization of cadmium(II) complexes of thiones and thiocyanate. J COORD CHEM 2009. [DOI: 10.1080/00958970802226395] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Saqib Ali
- a Department of Chemistry , Quaid-i-Azam University , Islamabad, Pakistan
| | | | - Anvarhusein A. Isab
- b Department of Chemistry , King Fahd University of Petroleum and Minerals , Dhahran 31261, Saudi Arabia
| | - Saeed Ahmad
- c Department of Chemistry , University of Engineering and Technology , Lahore 54890, Pakistan
| |
Collapse
|
49
|
Isab AA, Wazeer MIM, Ashraf W. Cadmium cyanide complexes with heterocyclic thiones: solid state and solution NMR studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2009; 72:218-221. [PMID: 19010714 DOI: 10.1016/j.saa.2008.09.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2008] [Revised: 07/27/2008] [Accepted: 09/21/2008] [Indexed: 05/27/2023]
Abstract
Cadmium(II)cyanide complexes of various thiones (imidazolidine-2-thione, diazinane-2-thione and their derivatives) have been prepared and characterized by elemental analysis, IR and solid as well as solution NMR spectroscopy. It appears from the IR data that all complexes are non-ionic [(>C=S)(2)Cd(CN)(2)]. An upfield shift in the (13)C NMR and downfield shifts in the (1)H NMR are consistent with the sulfur coordination to cadmium(II). The solid (113)Cd NMR data show the presence of different coordination numbers in some complexes.
Collapse
Affiliation(s)
- Anvarhusein A Isab
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
| | | | | |
Collapse
|
50
|
Nadeem S, Rauf MK, Ahmad S, Ebihara M, Tirmizi SA, Bashir SA, Badshah A. Synthesis and characterization of palladium(II) complexes of thioureas. X-ray structures of [Pd(N,N′-dimethylthiourea)4]Cl2 · 2H2O and [Pd(tetramethylthiourea)4]Cl2. TRANSIT METAL CHEM 2008. [DOI: 10.1007/s11243-008-9177-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|