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Moradpour B, Omidyan R. Photophysical properties of Pt(ii) complexes based on the benzoquinoline (bzq) ligand with OLED implication: a theoretical study. RSC Adv 2024; 14:20278-20289. [PMID: 38919282 PMCID: PMC11197014 DOI: 10.1039/d4ra03334e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 06/12/2024] [Indexed: 06/27/2024] Open
Abstract
In this study, we investigate photophysical properties of eight inorganic Pt(ii) complexes containing the bzq (benzoquinoline) ligand for OLED applications using high-level density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations. We explore the radiative and non-radiative relaxation constants (k r, k nr), spin-orbit coupling (SOC) matrix elements, and spectral properties. To ensure compatibility between the host and guest compounds, we determine the HOMO and LUMO energy levels, as well as the triplet excitation energies of the selected systems, and evaluate their efficiency for OLED devices. Our findings indicate that all systems, except for 2a and 2b, exhibit a small S1-T1 energetic gap (ΔE ≤ 0.60 eV) and promising SOC matrix elements (25-93 cm-1), leading to a significant intersystem crossing (ISC) process. These complexes also show promising radiative relaxation rates (k r = ∼10-4 s-1) and high phosphorescent quantum yields (Φ > 30%). Thus, our results confirm that six out of the eight selected Pt(ii) complexes are promising candidates for use in the emitting layer (EML) of OLED devices as efficient green emitters.
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Affiliation(s)
- Batool Moradpour
- Department of Chemistry, University of Isfahan 81746-73441 Isfahan Iran +98 31 3668 9732
| | - Reza Omidyan
- Department of Chemistry, University of Isfahan 81746-73441 Isfahan Iran +98 31 3668 9732
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2
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Katkova SA, Kozina DO, Kisel KS, Sandzhieva MA, Tarvanen DA, Makarov SV, Porsev VV, Tunik SP, Kinzhalov MA. Cyclometalated platinum(II) complexes with acyclic diaminocarbene ligands for OLED application. Dalton Trans 2023; 52:4595-4605. [PMID: 36928166 DOI: 10.1039/d3dt00080j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
A novel series of cyclometalated platinum(II) complexes bearing acyclic diaminocarbene (ADC) ancillary ligands were designed and prepared. Their photophysical properties were systematically studied through experimental and theoretical investigations. All complexes exhibit green phosphorescence with a quantum efficiency of up to 45% in 2 wt% doped PMMA film at room temperature. The complexes are used as light-emitting dopants for organic light-emitting diode (OLED) fabrication. The devices displayed a green emission with a maximum current efficiency of 2.9 cd A-1 and a luminance of 2700 cd m-2. These results show that these cyclometalated platinum(II) complexes can be used as efficient green emitting components of OLED devices.
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Affiliation(s)
- Svetlana A Katkova
- St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation.
| | - Daria O Kozina
- St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation.
| | - Kristina S Kisel
- St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation.
| | - Maria A Sandzhieva
- School of Physics and Engineering, ITMO University, Lomonosova 9, 197101, St. Petersburg, Russian Federation
| | - Dmitriy A Tarvanen
- School of Physics and Engineering, ITMO University, Lomonosova 9, 197101, St. Petersburg, Russian Federation
| | - Sergey V Makarov
- School of Physics and Engineering, ITMO University, Lomonosova 9, 197101, St. Petersburg, Russian Federation.,Harbin Engineering University, Harbin 150001, Heilongjiang, China.,Qingdao Innovation and Development Center of Harbin Engineering University, Qingdao 266000, Shandong, China
| | - Vitaly V Porsev
- St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation.
| | - Sergey P Tunik
- St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation.
| | - Mikhail A Kinzhalov
- St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation. .,Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, 634050 Tomsk, Russian Federation
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3
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Moradpour B, Omidyan R. DFT/TD-DFT study of electronic and phosphorescent properties in cycloplatinated complexes: implications for OLEDs. RSC Adv 2022; 12:34217-34225. [PMID: 36545612 PMCID: PMC9709923 DOI: 10.1039/d2ra06880j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 11/23/2022] [Indexed: 12/05/2022] Open
Abstract
High level density functional and time-dependent density functional (DFT, TD-DFT) theoretical methods have been employed to investigate the photophysical properties of 5 inorganic compounds resulting from Pt(ii) and ppy (2-phenyl-pyridine) ligands. This study is intended to provide insight into the capability of the selected systems to be used in OLED devices. In addition to an exploration of their ground and excited state geometry and electronic structures, the electronic transitions responsible for their absorption and spectra, as well as other photophysical properties, have been analyzed. To this end, their charge transfer parameters, the triplet exciton generation, phosphorescence quantum yield, and radiative decay rates have been studied. Overall, the results confirm that the selected systems are promising candidates to be used in OLED devices. Moreover, the results of this study assist in understanding the photophysical properties of Pt(ii) complexes with ppy ligands.
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Affiliation(s)
- Batool Moradpour
- Department of Chemistry, University of Isfahan81746-73441 IsfahanIran+98 31 3668 9732
| | - Reza Omidyan
- Department of Chemistry, University of Isfahan81746-73441 IsfahanIran+98 31 3668 9732
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4
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Nahaei A, Mandegani Z, Chamyani S, Fereidoonnezhad M, Shahsavari HR, Kuznetsov NY, Nabavizadeh SM. Half-Sandwich Cyclometalated Rh III Complexes Bearing Thiolate Ligands: Biomolecular Interactions and In Vitro and In Vivo Evaluations. Inorg Chem 2022; 61:2039-2056. [PMID: 35023727 DOI: 10.1021/acs.inorgchem.1c03218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A class of cyclometalated RhIII complexes [Cp*Rh(ppy)(SR)] bearing thiolate ligands, Cp* = pentamethylcyclopentadienyl, ppy = 2-phenylpyridinate, and R = pyridyl (Spy, 2), pyrimidyl (SpyN, 3), benzimidazolyl (Sbi, 4), and benzothiazolyl (Sbt, 5), were produced and identified by means of spectroscopic methods. The in vitro cytotoxicity of the RhIII compounds in three different human mortal cancerous cell lines (ovarian, SKOV3; breast, MCF-7; lung, A549) and a normal lung (MRC-5) cell line were evaluated, indicating the selectivity of these cyclometalated RhIII complexes to cancer cells. Complex 5, selected for in vivo experiment, has shown an effective inhibition of tumor growth in SKOV3 xenograft mouse model relative to control (p-values < 0.05 and < 0.01). Importantly, the outcomes of H&E (hematoxylin and eosin) staining and hematological analysis revealed negligible toxicity of 5 compared to cisplatin on a functioning of the main organs of mouse. Molecular docking, UV-vis, and emission spectroscopies (fluorescence, 3D fluorescence, synchronous) techniques were carried out on 1-5 to peruse the mechanism of the anticancer activities of these complexes. The obtained data help to manifest the binding affinity between the rhodium compounds and calf thymus DNA (CT-DNA) through the interaction by DNA minor groove and moderate binding affinity with bovine serum albumin (BSA), particularly with the cavity in the subdomain IIA. It can be concluded that the Rh-thiolate complexes are highly promising leads for the development of novel effective DNA-targeted anticancer drugs.
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Affiliation(s)
- Asma Nahaei
- Professor Rashidi Laboratory of Organometallic Chemistry, Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71467-13565, Iran
| | - Zeinab Mandegani
- Professor Rashidi Laboratory of Organometallic Chemistry, Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71467-13565, Iran
| | - Samira Chamyani
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Masood Fereidoonnezhad
- Toxicology Research Center; Department of Medicinal Chemistry, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz 61357-15794, Iran
| | - Hamid R Shahsavari
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Nikolai Yu Kuznetsov
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation
| | - S Masoud Nabavizadeh
- Professor Rashidi Laboratory of Organometallic Chemistry, Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71467-13565, Iran
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Shahsavari HR, Chamyani S, Hu J, Aghakhanpour RB, Rheingold AL, Paziresh S, Rahal D, Tsuji M, Momand B, Beyzavi H. The Utilization of
Para
‐Substituted Triphenylphosphine Derivatives to Synthesize Highly Emissive Cyclometalated Platinum(II) Complexes. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100732] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Hamid R. Shahsavari
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137-66731 Iran
- Department of Chemistry and Biochemistry University of Arkansas Fayetteville Arkansas 72701 United States
| | - Samira Chamyani
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137-66731 Iran
| | - Jiyun Hu
- Department of Chemistry and Biochemistry University of Arkansas Fayetteville Arkansas 72701 United States
| | - Reza Babadi Aghakhanpour
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137-66731 Iran
| | - Arnold L. Rheingold
- Department of Chemistry University of California San Diego, La Jolla California 92093 United States
| | - Sareh Paziresh
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137-66731 Iran
| | - Dania Rahal
- Department of Chemistry and Biochemistry University of Arkansas Fayetteville Arkansas 72701 United States
| | - Miu Tsuji
- Department of Chemistry and Biochemistry University of Arkansas Fayetteville Arkansas 72701 United States
| | - Bilal Momand
- Department of Chemistry and Biochemistry University of Arkansas Fayetteville Arkansas 72701 United States
| | - Hudson Beyzavi
- Department of Chemistry and Biochemistry University of Arkansas Fayetteville Arkansas 72701 United States
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6
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Lobana TS. Heterocyclic-2-thione derivatives of group 10–12 metals: Coordination versatility, activation of C S (thione) bonds and biochemical potential. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213884] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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7
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Hajipour F, Mahdavinia M, Fereidoonnezhad M. Half-lantern Cyclometalated Platinum(II) Complexes as Anticancer Agents: Molecular docking, Apoptosis, Cell Cycle Analysis and Cytotoxic Activity Evaluations. Anticancer Agents Med Chem 2021; 22:1149-1158. [PMID: 34259151 DOI: 10.2174/1871520621666210713112105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 05/21/2021] [Accepted: 05/30/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND AND OBJECTIVE In the design of modern metal-based anticancer drugs, platinum-based complexes have gained growing interest. In this study, the anticancer activity of half-lantern cyclometalated Pt(II)‒Pt(II) complexes were was evaluated using MTT, apoptosis, cell cycle analysis, and DNA binding studies. MATERIALS AND METHODS The cytotoxicity of Pt(II)‒Pt(II) complexes were evaluated against different cancer cell lines such as human lung (A549), breast (MCF-7, and MDA-MB-231), ovarian (SKOV-3), and colon (HT-29) as well as normal breast (MCF-10A), and human lung fibroblast MRC-5 cells using MTT assay. BioLegend's PE Annexin V Apoptosis Detection Kit with 7AAD was applied to assess the apoptotic effects of 1A, and 1B compound against MCF-7, and A549 cell lines. Cell cycle analysis was determined using the flowcytometry method. The interaction of compounds with four different DNA structures with PDB codes (1BNA, 1LU5, 3CO3, and 198D) has been investigated by molecular docking. To achieve binding to DNA experimentally, the electrophoresis mobility shift assay and comet assay was applied. RESULTS In the evaluation of cytotoxic effects, 1A showed the highest cytotoxicity among the studied compounds, and it showed higher potency with more selectivity against normal cell lines than cisplatin. This compound had IC50 of 7.24, 2.21, 1.18, 2.71, 10.65, 18.32 and 49.21 μM against A549, SKOV3, HT29, MCF-7, MDA-MB-231, MRC-5, and MCF-10A, respectively, whereas cisplatin had IC50 of 9.75, 19.02, 107.23, 15.20, 18.09, 14.36, and 24.21 μm, respectively, on the same cell lines. In order to check the DNA binding activity of 1A, and 1B, electrophoretic mobility was also conducted, which indicated that the binding of these compounds led to a slight change in electrophoretic mobility to DNA. The migration of chromosomal DNA from the nucleus in the form of a tail or comet was executed in the comet assay of 1A on MCF-7. Examination of apoptosis of 1A, and 1B on the MCF-7 cancer cell line, showed that it could increase induction of apoptosis in this cancerous cell in a concentration-dependent manner. Investigating the effect of 1A using cell cycle analysis on MCF-7 cancer cell line showed that this complex affects the stage G1 and S of the cell cycle. CONCLUSION 1A has the potential to play a significant role in future biopharmaceutical studies.
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Affiliation(s)
- Fatemeh Hajipour
- Toxicology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Masoud Mahdavinia
- Toxicology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Masood Fereidoonnezhad
- Toxicology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Photophysical Properties and Kinetic Studies of 2-Vinylpyridine-Based Cycloplatinated(II) Complexes Containing Various Phosphine Ligands. Molecules 2021; 26:molecules26072034. [PMID: 33918450 PMCID: PMC8038257 DOI: 10.3390/molecules26072034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/21/2021] [Accepted: 03/30/2021] [Indexed: 11/25/2022] Open
Abstract
A series of cycloplatinated(II) complexes with general formula of [PtMe(Vpy)(PR3)], Vpy = 2-vinylpyridine and PR3 = PPh3 (1a); PPh2Me (1b); PPhMe2 (1c), were synthesized and characterized by means of spectroscopic methods. These cycloplatinated(II) complexes were luminescent at room temperature in the yellow–orange region’s structured bands. The PPhMe2 derivative was the strongest emissive among the complexes, and the complex with PPh3 was the weakest one. Similar to many luminescent cycloplatinated(II) complexes, the emission was mainly localized on the Vpy cyclometalated ligand as the main chromophoric moiety. The present cycloplatinated(II) complexes were oxidatively reacted with MeI to yield the corresponding cycloplatinated(IV) complexes. The kinetic studies of the reaction point out to an SN2 mechanism. The complex with PPhMe2 ligand exhibited the fastest oxidative addition reaction due to the most electron-rich Pt(II) center in its structure, whereas the PPh3 derivative showed the slowest one. Interestingly, for the PPhMe2 analog, the trans isomer was stable and could be isolated as both kinetic and thermodynamic product, while the other two underwent trans to cis isomerization.
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9
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Katkova SA, Eliseev II, Mikherdov AS, Sokolova EV, Starova GL, Kinzhalov MA. Cyclometalated Platinum(II) Complexes with Nitrile and Isocyanide Ligands: Synthesis, Structure, and Photophysical Properties. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363221030099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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10
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Shahsavari HR, Paziresh S. The impact of cyclometalated and phosphine ligands on the luminescence properties of cycloplatinated( ii) complexes: photophysical and theoretical investigations. NEW J CHEM 2021. [DOI: 10.1039/d1nj04242d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The effects of various C^N cyclometalated and phosphine ligands on the photophysical properties of cycloplatinated(ii) complexes were investigated experimentally and theoretically.
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Affiliation(s)
- Hamid R. Shahsavari
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Sareh Paziresh
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
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11
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Bavi M, Nabavizadeh SM, Hosseini FN, Niknam F, Hamidizadeh P, Hoseini SJ, Raoof F, Abu-Omar MM. Ligand-Mediated C-Br Oxidative Addition to Cycloplatinated(II) Complexes and Benzyl-Me C-C Bond Reductive Elimination from a Cycloplatinated(IV) Complex. ACS OMEGA 2020; 5:28621-28631. [PMID: 33195914 PMCID: PMC7658948 DOI: 10.1021/acsomega.0c03573] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 09/01/2020] [Indexed: 06/11/2023]
Abstract
Reaction of the Pt(II) complexes [PtMe2(pbt)], 1a, (pbt = 2-(2-pyridyl)benzothiazole) and [PtMe(C^N)(PPh2Me)] [C^N = deprotonated 2-phenylpyridine (ppy), 1b, or deprotonated benzo[h]quinoline (bhq), 1c] with benzyl bromide, PhCH2Br, is studied. The reaction of 1a with PhCH2Br gave the Pt(IV) product complex [PtBr(CH2Ph)Me2(pbt)]. The major trans isomer is formed in a trans oxidative addition (2a), while the minor cis products (2a' and 2a″) resulted from an isomerization process. A solution of Pt(II) complex 1a in the presence of benzyl bromide in toluene at 70 °C after 7 days gradually gave the dibromo Pt(IV) complex [Pt(Br)2Me2(pbt)], 4a, as determined by NMR spectroscopy and single-crystal XRD. The reaction of complexes 1b and 1c with PhCH2Br gave the Pt(IV) complexes [PtMeBr(CH2Ph)(C^N)(PPh2Me)] (C^N = ppy; 2b; C^N = bhq, 2c), in which the phosphine and benzyl ligands are trans. Multinuclear NMR spectroscopy ruled out other isomers. Attempts to grow crystals of the cycloplatinated(IV) complex 2b yielded a previously reported Pt(II) complex [PtBr(ppy)(PPh2Me)], 3b, presumably from reductive elimination of ethylbenzene. UV-vis spectroscopy was used to study the kinetics of reaction of Pt(II) complexes 1a-1c with benzyl bromide. The data are consistent with a second-order SN2 mechanism and the first order in both the Pt complex and PhCH2Br. The rate of reaction decreases along the series 1a ≫ 1c > 1b. Density functional theory calculations were carried out to support experimental findings and understand the formation of isomers.
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Affiliation(s)
- Marzieh Bavi
- Professor Rashidi
Laboratory of Organometallic Chemistry, Department of Chemistry, College
of Sciences, Shiraz University, Shiraz 71467-13565, Iran
| | - S. Masoud Nabavizadeh
- Professor Rashidi
Laboratory of Organometallic Chemistry, Department of Chemistry, College
of Sciences, Shiraz University, Shiraz 71467-13565, Iran
| | | | - Fatemeh Niknam
- Professor Rashidi
Laboratory of Organometallic Chemistry, Department of Chemistry, College
of Sciences, Shiraz University, Shiraz 71467-13565, Iran
| | - Peyman Hamidizadeh
- Professor Rashidi
Laboratory of Organometallic Chemistry, Department of Chemistry, College
of Sciences, Shiraz University, Shiraz 71467-13565, Iran
| | - S. Jafar Hoseini
- Professor Rashidi
Laboratory of Organometallic Chemistry, Department of Chemistry, College
of Sciences, Shiraz University, Shiraz 71467-13565, Iran
| | - Fatemeh Raoof
- Professor Rashidi
Laboratory of Organometallic Chemistry, Department of Chemistry, College
of Sciences, Shiraz University, Shiraz 71467-13565, Iran
| | - Mahdi M. Abu-Omar
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
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12
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Hu J, Nikravesh M, Shahsavari HR, Babadi Aghakhanpour R, Rheingold AL, Alshami M, Sakamaki Y, Beyzavi H. A C^N Cycloplatinated(II) Fluoride Complex: Photophysical Studies and C sp3-F Bond Formation. Inorg Chem 2020; 59:16319-16327. [PMID: 33135890 DOI: 10.1021/acs.inorgchem.0c02115] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
This work reports the synthesis and characterization of a new C^N-based cycloplatinated(II) fluoride complex, [Pt(ppy)(PPh3)F] (2; ppy = 2-phenylpyridinate), involving a Pt-F bond. The new complex is highly luminescent in the green area with a high quantum yield of 94.6% at 77 K. A comparison study of the heavier halogen derivatives reveals a descending emission quantum yield order of F > Cl > Br > I. Time-dependent density functional theory calculations ascribe the decreased emission efficiency to the decreasing trend of an intraligand (IL) transition from F to I, which accounts for the major radiative pathway. In addition, 2 is capable of the fluorinating alkyl halides, leading to Csp3-F bond formation at room temperature.
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Affiliation(s)
- Jiyun Hu
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Mahshid Nikravesh
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Hamid R Shahsavari
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States.,Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Reza Babadi Aghakhanpour
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Arnold L Rheingold
- Department of Chemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Mia Alshami
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Yoshie Sakamaki
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Hudson Beyzavi
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
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Nabavizadeh SM, Niroomand Hosseini F, Niknam F, Hamidizadeh P, Hoseini SJ, Ford PC, Abu-Omar MM. Chelating and Bridging Roles of 2-(2-Pyridyl)benzimidazole and Bis(diphenylphosphino)acetylene in Stabilizing a Cyclic Tetranuclear Platinum(II) Complex. Inorg Chem 2019; 58:14608-14616. [PMID: 31613604 DOI: 10.1021/acs.inorgchem.9b02274] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The reaction of complex [Pt(Me)(DMSO)(pbz)], 1, (pbz = 2-(2-pyridyl)benzimidazolate) with [PtMe(Cl)(DMSO)2], B, followed by addition of bis(diphenylphosphino)acetylene (dppac), gave the novel tetranuclear platinum complex [Pt4Me4(μ-dppac)2(pbz)2Cl2], 2, bearing both the pbz and dppac ligands. In this structure, the pbz ligands are both chelating and bridging to stabilize the tetraplatinum framework. The tetranuclear Pt(II) complex was fully characterized by NMR spectroscopy, X-ray crystallography, and mass spectrometry, and its electronic structure was investigated and supported by DFT calculations.
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Affiliation(s)
- S Masoud Nabavizadeh
- Professor Rashidi Laboratory of Organometallic Chemistry, Department of Chemistry, College of Sciences , Shiraz University , Shiraz 71467-13565 , Iran.,Department of Chemistry and Biochemistry , University of California , Santa Barbara , California 93106 , United States
| | | | - Fatemeh Niknam
- Professor Rashidi Laboratory of Organometallic Chemistry, Department of Chemistry, College of Sciences , Shiraz University , Shiraz 71467-13565 , Iran
| | - Peyman Hamidizadeh
- Professor Rashidi Laboratory of Organometallic Chemistry, Department of Chemistry, College of Sciences , Shiraz University , Shiraz 71467-13565 , Iran
| | - S Jafar Hoseini
- Professor Rashidi Laboratory of Organometallic Chemistry, Department of Chemistry, College of Sciences , Shiraz University , Shiraz 71467-13565 , Iran
| | - Peter C Ford
- Department of Chemistry and Biochemistry , University of California , Santa Barbara , California 93106 , United States
| | - Mahdi M Abu-Omar
- Department of Chemistry and Biochemistry , University of California , Santa Barbara , California 93106 , United States
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14
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Nikahd S, Babadi Aghakhanpour R, Nabavizadeh SM, Niroomand Hosseini F, Hoseini SJ, Pfitzner A, Samandar Sangari M. Luminescent mononuclear and dinuclear cycloplatinated (II) complexes comprising azide and phosphine ancillary ligands. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sahebeh Nikahd
- Professor Rashidi Laboratory of Organometallic Chemistry, Department of Chemistry, College of SciencesShiraz University Shiraz 71467‐13565 Iran
| | | | - S. Masoud Nabavizadeh
- Professor Rashidi Laboratory of Organometallic Chemistry, Department of Chemistry, College of SciencesShiraz University Shiraz 71467‐13565 Iran
| | | | - S. Jafar Hoseini
- Professor Rashidi Laboratory of Organometallic Chemistry, Department of Chemistry, College of SciencesShiraz University Shiraz 71467‐13565 Iran
| | - Arno Pfitzner
- Institut für Anorganische ChemieUniversität Regensburg 93040 Regensburg Germany
| | - Mozhgan Samandar Sangari
- Professor Rashidi Laboratory of Organometallic Chemistry, Department of Chemistry, College of SciencesShiraz University Shiraz 71467‐13565 Iran
- Institut für Anorganische ChemieUniversität Regensburg 93040 Regensburg Germany
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15
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Nazari M, Shahsavari HR. Strong red emissions induced by Pt–Pt interactions in binuclear cycloplatinated(II) complexes containing bridging diphosphines. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Morteza Nazari
- Department of ChemistryInstitute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137‐66731 Iran
| | - Hamid R. Shahsavari
- Department of ChemistryInstitute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137‐66731 Iran
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16
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Shahsavari HR, Giménez N, Lalinde E, Moreno MT, Fereidoonnezhad M, Babadi Aghakhanpour R, Khatami M, Kalantari F, Jamshidi Z, Mohammadpour M. Heterobimetallic PtII
-AuI
Complexes Comprising Unsymmetrical 1,1-Bis(diphenylphosphanyl)methane Bridges: Synthesis, Photophysical, and Cytotoxic Studies. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801297] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hamid R. Shahsavari
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); 45137-66731 Zanjan Iran
| | - Nora Giménez
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ); Universidad de La Rioja; 26006 Logroño Spain
| | - Elena Lalinde
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ); Universidad de La Rioja; 26006 Logroño Spain
| | - M. Teresa Moreno
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ); Universidad de La Rioja; 26006 Logroño Spain
| | - Masood Fereidoonnezhad
- Toxicology Research Center; Ahvaz Jundishapur University of Medical Sciences; Ahvaz Iran
- Department of Medicinal Chemistry; Student Research Committee; Ahvaz Jundishapur University of Medical Sciences; Ahvaz Iran
| | - Reza Babadi Aghakhanpour
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); 45137-66731 Zanjan Iran
| | - Mehri Khatami
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); 45137-66731 Zanjan Iran
| | - Foroogh Kalantari
- Department of Medicinal Chemistry; Student Research Committee; Ahvaz Jundishapur University of Medical Sciences; Ahvaz Iran
| | - Zahra Jamshidi
- Student Research Committee; Chemistry & Chemical Engineering Research Center of Iran; 14968-13151 Tehran Iran
| | - Mozhdeh Mohammadpour
- Student Research Committee; Chemistry & Chemical Engineering Research Center of Iran; 14968-13151 Tehran Iran
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17
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Paziresh S, Babadi Aghakhanpour R, Fuertes S, Sicilia V, Niroomand Hosseini F, Nabavizadeh SM. A double rollover cycloplatinated(ii) skeleton: a versatile platform for tuning emission by chelating and non-chelating ancillary ligand systems. Dalton Trans 2019; 48:5713-5724. [PMID: 30968899 DOI: 10.1039/c9dt00807a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Described here is the synthesis and characterization of heteroleptic binuclear platinum(ii) complexes of the type [Pt2(μ-bpy-2H)(S^S)2] and [Pt2(μ-bpy-2H)(L)2(X)2], containing a 2,2'-bipyridine-based double rollover cycloplatinated core (Pt(μ-bpy-2H)Pt), in combination with the anionic S^S- chelate ligands di(ethyl)dithiocarbamate (dedtc) and O,O'-di(cyclohexyl)dithiophosphate (dcdtp) or non-chelating L/X ancillary ligands (PPh3/Me, t-BuNC/Me, PPh3/SCN and PPh3/N3). The new complexes were characterized using multinuclear (1H, 31P and 195Pt) NMR spectroscopy and some of them additionally using single crystal X-ray diffraction. The absorption and photoluminescence of the complexes show a strong dependence on the ancillary ligands. Upon excitation at 365 nm, in a CH2Cl2 rigid matrix (77 K), the complexes exhibit structured emission bands with λmax between 488 nm and 525 nm and vibrational spacing around 1350 cm-1, indicating the excited states centered on the cyclometalated ligand (3ILCT) with some mixing 3MLCT characteristics. In the case of the PPh3/N3 complex, a dual emission band (orange color) is observed in the solid state at 298 K for which the low energy band arises from an aggregation-induced emission (AIE). Upon lowering the temperature (77 K), thermochromism is observed (orange to yellow) which is accompanied by the intensification of the high energy band (ligand-centered structured band). Finally, in order to rationalize the obtained photophysical data, complete DFT (density functional theory) and TD-DFT (time-dependent DFT) calculations were performed on the selected complexes.
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Affiliation(s)
- Sareh Paziresh
- Professor Rashidi Laboratory of Organometallic Chemistry, Department of Chemistry, College of Sciences, Shiraz University, Shiraz, 71454, Iran.
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18
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Nahaei A, Nabavizadeh SM, Hosseini FN, Hoseini SJ, Abu-Omar MM. Arene C–H bond activation and methane formation by a methylplatinum(ii) complex: experimental and theoretical elucidation of the mechanism. NEW J CHEM 2019. [DOI: 10.1039/c9nj01968e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A combined experimental/computational investigation reveals that the cyclometalation of [PtMe2(DMSO)2], 1, by HC^N ligands proceeds via HC^N coordination through the N donor atom, oxidative addition of the arene C–H bond, and final dissociation of methane from a platinum hydride complex.
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Affiliation(s)
- Asma Nahaei
- Professor Rashidi Laboratory of Organometallic Chemistry
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz
| | - S. Masoud Nabavizadeh
- Professor Rashidi Laboratory of Organometallic Chemistry
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz
| | | | - S. Jafar Hoseini
- Professor Rashidi Laboratory of Organometallic Chemistry
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz
| | - Mahdi M. Abu-Omar
- Department of Chemistry and Biochemistry
- University of California
- Santa Barbara
- California 93106
- USA
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19
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Chamyani S, Shahsavari HR, Abedanzadeh S, Golbon Haghighi M, Shabani S, Notash B. Carbon-iodide bond activation by cyclometalated Pt (II) complexes bearing tricyclohexylphosphine ligand: A comparative kinetic study and theoretical elucidation. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4674] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Samira Chamyani
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); Zanjan 45137-66731 Iran
| | - Hamid R. Shahsavari
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); Zanjan 45137-66731 Iran
| | - Sedigheh Abedanzadeh
- Institute of Biochemistry and Biophysics (IBB), University of Tehran; Tehran Iran
| | | | - Sepideh Shabani
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); Zanjan 45137-66731 Iran
| | - Behrouz Notash
- Department of Chemistry; Shahid Beheshti University; Evin Tehran 19839-69411 Iran
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20
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Solomatina AI, Chelushkin PS, Abakumova TO, Zhemkov VA, Kim M, Bezprozvanny I, Gurzhiy VV, Melnikov AS, Anufrikov YA, Koshevoy IO, Su SH, Chou PT, Tunik SP. Reactions of Cyclometalated Platinum(II) [Pt(N∧C)(PR3)Cl] Complexes with Imidazole and Imidazole-Containing Biomolecules: Fine-Tuning of Reactivity and Photophysical Properties via Ligand Design. Inorg Chem 2018; 58:204-217. [DOI: 10.1021/acs.inorgchem.8b02204] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | | | - Tatiana O. Abakumova
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Skolkovo, Nobel str. 3, 143026 Moscow, Russia
| | - Vladimir A. Zhemkov
- Department of Physiology, UT Southwestern Medical Center at Dallas, 5323 Harry Hines Boulevard, Dallas 75390, Texas, United States
| | - Meewhi Kim
- Department of Physiology, UT Southwestern Medical Center at Dallas, 5323 Harry Hines Boulevard, Dallas 75390, Texas, United States
| | - Ilya Bezprozvanny
- Department of Physiology, UT Southwestern Medical Center at Dallas, 5323 Harry Hines Boulevard, Dallas 75390, Texas, United States
| | | | | | | | - Igor O. Koshevoy
- Department of Chemistry, University of Eastern Finland, 80101 Joensuu, Finland
| | - Shih-Hao Su
- Department of Chemistry, National Taiwan University, 10617 Taipei, Taiwan R.O.C
| | - Pi-Tai Chou
- Department of Chemistry, National Taiwan University, 10617 Taipei, Taiwan R.O.C
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21
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Shahsavari HR, Babadi Aghakhanpour R, Nikravesh M, Ozdemir J, Golbon Haghighi M, Notash B, Beyzavi H. Highly Emissive Cycloplatinated(II) Complexes Obtained by the Chloride Abstraction from the Complex [Pt(ppy)(PPh3)(Cl)]: Employing Various Silver Salts. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00461] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hamid R. Shahsavari
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Reza Babadi Aghakhanpour
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Mahshid Nikravesh
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - John Ozdemir
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | | | - Behrouz Notash
- Department of Chemistry, Shahid Beheshti University, Evin, Tehran 19839-69411, Iran
| | - Hudson Beyzavi
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
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22
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Barzegar-Kiadehi SR, Golbon Haghighi M, Jamshidi M, Notash B. Influence of the Diphosphine Coordination Mode on the Structural and Optical Properties of Cyclometalated Platinum(II) Complexes: An Experimental and Theoretical Study on Intramolecular Pt···Pt and π···π Interactions. Inorg Chem 2018; 57:5060-5073. [PMID: 29638116 DOI: 10.1021/acs.inorgchem.8b00137] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Mahboubeh Jamshidi
- Institut für Physikalische und Theoretische Chemie, Universität Regensburg, Universitätsstrasse 31, D-93053 Regensburg, Germany
| | - Behrouz Notash
- Department of Chemistry, Shahid Beheshti University, Evin, Tehran 19839-69411, Iran
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23
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Fereidoonnezhad M, Ramezani Z, Nikravesh M, Zangeneh J, Golbon Haghighi M, Faghih Z, Notash B, Shahsavari HR. Cycloplatinated(ii) complexes bearing an O,S-heterocyclic ligand: search for anticancer drugs. NEW J CHEM 2018. [DOI: 10.1039/c8nj01332b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Cycloplatinated(ii) complexes containing the 2-mercaptopyridine N-oxide ligand were synthesized and characterized spectroscopically. The biological activities of these complexes were also investigated.
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Affiliation(s)
- Masood Fereidoonnezhad
- Cancer, Environmental and Petroleum Pollutants Research Center; Department of Medicinal Chemistry, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences
- Ahvaz
- Iran
| | - Zahra Ramezani
- Cancer, Environmental and Petroleum Pollutants Research Center; Department of Medicinal Chemistry, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences
- Ahvaz
- Iran
| | - Mahshid Nikravesh
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
| | - Jalalaldin Zangeneh
- Cancer, Environmental and Petroleum Pollutants Research Center; Department of Medicinal Chemistry, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences
- Ahvaz
- Iran
| | | | - Zahra Faghih
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences
- Shiraz
- Iran
| | - Behrouz Notash
- Department of Chemistry, Shahid Beheshti University
- Tehran 19839-69411
- Iran
| | - Hamid R. Shahsavari
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
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24
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Samandar Sangari M, Golbon Haghighi M, Nabavizadeh SM, Pfitzner A, Rashidi M. Influence of ancillary ligands on the photophysical properties of cyclometalated organoplatinum(ii) complexes. NEW J CHEM 2018. [DOI: 10.1039/c7nj04888b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The photophysical properties of three series of cyclometalated organoplatinum(ii) complexes were studied and the influence of changing the ancillary ligands and substituents on their luminescence properties were investigated.
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Affiliation(s)
- Mozhgan Samandar Sangari
- Professor Rashidi Laboratory of Organometallic Chemistry
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz 71467-13565
| | | | - S. Masoud Nabavizadeh
- Professor Rashidi Laboratory of Organometallic Chemistry
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz 71467-13565
| | - Arno Pfitzner
- Institut für Anorganische Chemie
- Universität Regensburg
- Regensburg D-93053
- Germany
| | - Mehdi Rashidi
- Professor Rashidi Laboratory of Organometallic Chemistry
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz 71467-13565
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