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Vasilchenko D, Tkachenko P, Tkachev S, Popovetskiy P, Komarov V, Asanova T, Asanov I, Filatov E, Maximovskiy E, Gerasimov E, Zhurenok A, Kozlova E. Sulfuric Acid Solutions of [Pt(OH) 4(H 2O) 2]: A Platinum Speciation Survey and Hydrated Pt(IV) Oxide Formation for Practical Use. Inorg Chem 2022; 61:9667-9684. [PMID: 35700060 DOI: 10.1021/acs.inorgchem.2c01134] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The systematic study of the platinum speciation in sulfuric acid solutions of platinum (IV) hydroxide {[Pt(OH)4(H2O)2], HHPA} was performed with the use of a combination of methods. Depending on the prevailing Pt form, the three regions of H2SO4 concentration were marked: (1) up to 3 M H2SO4 forms unstable solutions gradually generating the PtO2·xH2O particles; (2) 4-12 M H2SO4, where the series of mononuclear aqua-sulfato complexes ([Pt(SO4)n(H2O)6-n]4-2n, where n = 0···4) dominate; and (3) 12 M and above, where, along with [Pt(SO4)n(H2O)6-n]4-2n species, the polynuclear Pt(IV) species and complexes with a bidentate coordination mode of the sulfato ligand are formed. For the first time, the salts of the aqua-hydroxo Pt(IV) cation [Pt(OH)2(H2O)4]SO4 (triclinic and monoclinic phases) were isolated and studied with a combination of methods, including the single-crystal X-ray diffraction. The formation of PtO2·xH2O particles in sulfuric acid solutions (1-3 M) of HHPA and their spectral characteristics and morphology were studied. The deposition of PtO2·xH2O was highlighted as a convenient method to prepare various Pt-containing heterogeneous catalysts. This possibility was illustrated by the preparation of Pt/g-C3N4 catalysts, which show an excellent performance in catalytic H2 generation under visible light irradiation with a quantum efficiency up to 5% and a rate of H2 evolution up to 6.2 mol·h-1 per gram of loaded platinum.
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Affiliation(s)
- Danila Vasilchenko
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia
| | - Pavel Tkachenko
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia.,Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Sergey Tkachev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia
| | - Pavel Popovetskiy
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia
| | - Vladislav Komarov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia
| | - Tatyana Asanova
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia
| | - Igor Asanov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia
| | - Evgeny Filatov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia
| | - Eugene Maximovskiy
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia
| | - Evgeny Gerasimov
- Federal Research Center Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia
| | - Angelina Zhurenok
- Federal Research Center Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia
| | - Ekaterina Kozlova
- Federal Research Center Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia
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Yamaguchi T, Yoshiya K. Coordination Isomers of Trinuclear Pt 2Hg Complex That Differ in Type of Metal-Metal Bond. Inorg Chem 2019; 58:9548-9552. [PMID: 31313571 DOI: 10.1021/acs.inorgchem.9b00978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
New type isomers that differ in metal-metal bond type are isolated. One is the Pt-Hg-Pt complex, which has two metal-metal covalent bonds, Pt-Hg = 2.5459(8) and 2.5483(7) Å, and the other is the Pt→Hg-Pt complex, which has one metal-metal covalent bond, Pt-Hg = 2.5744(6) Å, and one metal-metal dative bond, Pt→Hg = 2.6635(7) Å.
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Affiliation(s)
- Tadashi Yamaguchi
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering , Waseda University , Tokyo 169-8555 , Japan
| | - Kohei Yoshiya
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering , Waseda University , Tokyo 169-8555 , Japan
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Deo KM, Ang DL, McGhie B, Rajamanickam A, Dhiman A, Khoury A, Holland J, Bjelosevic A, Pages B, Gordon C, Aldrich-Wright JR. Platinum coordination compounds with potent anticancer activity. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.11.014] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Abstract
This critical review highlights the progress in (195)Pt NMR over the last 25 years. In particular, some of the recent applications of (195)Pt NMR in catalytic and mechanistic studies, intermetallics and drug binding studies are discussed. (195)Pt NMR chemical shifts obtained from both theoretical studies and experiments are presented for Pt(0), Pt(II), Pt(III) and Pt(IV) complexes. (195)Pt coupling with various nuclei (viz. coupling constants) have also been collected in addition to data on (195)Pt relaxation. The latest developments in the theoretical knowledge and experimental advances have made (195)Pt NMR into a rich source of information in many fields. (164 references.).
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Affiliation(s)
- Brett M Still
- Nanoscale Organisation and Dynamics Group, College of Health and Science, University of Western Sydney, Penrith South DC, NSW 1797, Australia
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Iwatsuki S, Mizushima C, Morimoto N, Muranaka S, Ishihara K, Matsumoto K. Precise investigation of the axial ligand substitution mechanism on a hydrogenphosphato-bridged lantern-type platinum(III) binuclear complex in acidic aqueous solution. Inorg Chem 2006; 44:8097-104. [PMID: 16241160 DOI: 10.1021/ic050930p] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Detailed equilibrium and kinetic studies on axial water ligand substitution reactions of the "lantern-type" platinum(III) binuclear complex, [Pt(2)(mu-HPO(4))(4)(H(2)O)(2)](2)(-), with halide and pseudo-halide ions (X(-) = Cl(-), Br(-), and SCN(-)) were carried out in acidic aqueous solution at 25 degrees C with I = 1.0 M. The diaqua Pt(III) dimer complex is in acid dissociation equilibrium in aqueous solution with -log K(h1) = 2.69 +/- 0.04. The consecutive formation constants of the aquahalo complex () and the dihalo complex () were determined spectrophotometrically to be log = 2.36 +/- 0.01 and log = 1.47 +/- 0.01 for the reaction with Cl(-) and log = 2.90 +/- 0.04 and log = 2.28 +/- 0.01 for the reaction with Br(-), respectively. In the kinetic measurements carried out under the pseudo-first-order conditions with a large excess concentration of halide ion compared to that of Pt(III) dimer (C(X)()- >> C(Pt)), all of the reactions proceeded via a one-step first-order reaction, which is a contrast to the consecutive two-step reaction for the amidato-bridged platinum(III) binuclear complexes. The conditional first-order rate constant (k(obs)) depended on C(X)()- as well as the acidity of the solution. From kinetic analyses, the rate-limiting step was determined to be the first substitution process that forms the monohalo species, which is in rapid equilibrium with the dihalo complex. The reaction with 4-penten-1-ol was also kinetically investigated to examine the reactivity of the lantern complex with olefin compounds.
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Affiliation(s)
- Satoshi Iwatsuki
- Department of Chemistry, Graduate School of Science and Engineering, and School of Science and Engineering, Waseda University, Tokyo, Japan.
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Iwatsuki S, Isomura E, Wada A, Ishihara K, Matsumoto K. 195
Pt NMR Spectra of Head‐to‐Head and Head‐to‐Tail Amidato‐Bridged Platinum(
III
) Dinuclear Complexes. Eur J Inorg Chem 2006. [DOI: 10.1002/ejic.200500954] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Satoshi Iwatsuki
- Graduate School of Science and Engineering, Waseda University, Okubo, Shinjuku‐ku, Tokyo 169‐8555, Japan
| | - Eigo Isomura
- Department of Chemistry, School of Science and Engineering, Waseda University, Okubo, Shinjuku‐ku, Tokyo 169‐8555, Japan, Fax: +81‐3‐3208‐2735
| | - Atsushi Wada
- Department of Chemistry, School of Science and Engineering, Waseda University, Okubo, Shinjuku‐ku, Tokyo 169‐8555, Japan, Fax: +81‐3‐3208‐2735
| | - Koji Ishihara
- Department of Chemistry, School of Science and Engineering, Waseda University, Okubo, Shinjuku‐ku, Tokyo 169‐8555, Japan, Fax: +81‐3‐3208‐2735
- Materials Research Laboratory for Bioscience and Photonics, Graduate School of Science and Engineering, Waseda University, Okubo, Shinjuku‐ku, Tokyo 169‐8555, Japan
| | - Kazuko Matsumoto
- Department of Chemistry, School of Science and Engineering, Waseda University, Okubo, Shinjuku‐ku, Tokyo 169‐8555, Japan, Fax: +81‐3‐3208‐2735
- Advanced Research Institute for Science and Engineering, Waseda University, Okubo, Shinjuku‐ku, Tokyo 169‐8555, Japan
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Pellicani RZ, Intini FP, Maresca L, Mesto E, Pacifico C, Natile G. The First Example of a Dinuclear Platinum(III) Complex with Three Bridging Ligands. Eur J Inorg Chem 2006. [DOI: 10.1002/ejic.200500952] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Laforgia M, Margiotta N, Capitelli F, Bertolasi V, Natile G. Platinum Complexes with the Novel Ligand Diethyl [(Methylsulfinyl)-methyl]phosphonate (SMP): Solid-State Characterization of Potassium Trichloro(SMP)platinum(II) which, in Solution, Gives Dichloro(SMP)-platinum(II) and Potassium Chloride. Eur J Inorg Chem 2005. [DOI: 10.1002/ejic.200400842] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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9
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Laforgia M, Cerasino L, Margiotta N, Capozzi M, Cardellicchio C, Naso F, Natile G. Synthesis and Characterization of Platinum(II) Complexes of Diethyl [(Methylsulfinyl)methyl]phosphonate: Potential Drugs against Bone Tumors. Eur J Inorg Chem 2004. [DOI: 10.1002/ejic.200400195] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Keller BJ, Hurst SK, Dunham SO, Spangler L, Abbott EH, Peterson ES. Solution equilibria leading to the formation of metal–metal bonds in partially oxidized bisoxalatoplatinate(II) systems. Inorganica Chim Acta 2004. [DOI: 10.1016/j.ica.2003.09.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Matsumoto K, Ochiai M. Organometallic chemistry of platinum-blue derived platinumIII dinuclear complexes. Coord Chem Rev 2002. [DOI: 10.1016/s0010-8545(02)00125-x] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Diplatinum(III) complexes with bridging 1-methylcytosinate ligands and variable axial ligands, including guanine nucleobases. Inorganica Chim Acta 2002. [DOI: 10.1016/s0020-1693(01)00741-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yamaguchi T, Shibata A, Ito T. Comproportionation reaction and hindered rotation of coordinated pyridine rings in an acetate-bridged tetraplatinum(II) cluster with pyridine-based ligands in the cluster plane. Chemistry 2001; 7:5409-18. [PMID: 11822441 DOI: 10.1002/1521-3765(20011217)7:24<5409::aid-chem5409>3.0.co;2-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A series of pyridine-substituted derivatives of octaacetatotetraplatinum(II), [Pt4(CH3COO)8-n(L)2n]n+ (L= 4-dimethylaminopyridine (dmap), pyridine (py), 4-cyanopyridine (cpy); n = 1-4) were prepared, and the tetra- and octasubstituted forms (n = 2 and 4) were isolated. 1HNMR spectra showed that this type of cluster undergoes a comproportionation reaction. Reactions between clusters in which n = 0 and 2, n = 0 and 4, and n = 2 and 4 afforded Pt4 clusters with n = 1, 2, and 3, respectively, as a main product in acetonitrile. The dmap-substituted clusters, trans-[Pt4(CH3COO)6(dmap)4](ClO4)2 x 3CH3NO2 (3a(ClO4)2 x 3CH3NO2) and [Pt4(CH3COO)4(dmap)8](ClO4)4 x 4 H2O (5a(ClO4)4-4H2O), have been structurally characterized. Both 3a and 5a have a square-planar cluster core comprised of four PtII ions, and all eight out-of-plane coordination sites are occupied by acetate ligands in a bridging mode. In 5a, all of the in-plane sites are occupied by dmap ligands. In 3a, four dmap ligands occupy the coordination sites at the two mutually opposite edges of the square planar cluster skeleton, giving a trans tetrasubstituted form of [Pt4(CH3COO)8-] (1). In octasubstituted 5a, adjacent dmap ligands are so closely arranged that the Pt-N distances (2.20(3), 2.30(3) A) are longer than those in tetrasubstituted 3a (2.13(1), 2.15(1) A) and related Pt4 clusters. Furthermore, rotation of the dmap ligand about the Pt-N bond in 5a was restricted, and the rate constant of the rotation was 4.5s(-1) at 20 degrees C from dynamic NMR study. Cluster [Pt4(CH3COO)5(dmap)6]3+ (4a) also exhibited similar hindered rotation with the rate constants of 2.0s(-1), 12s(-1) and approximately 10(4)s(-1) at 20 degrees C depending on the coordination sites of the dmap ligands in 4a.
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Affiliation(s)
- T Yamaguchi
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Japan.
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15
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Yamaguchi T, Ito T. Tetra- and trinuclear platinum(II) cluster complexes. ADVANCES IN INORGANIC CHEMISTRY 2001. [DOI: 10.1016/s0898-8838(05)52004-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Maliarik M, Glaser J, Tóth I. Novel Pentacyano Complexes of Tri- and Tetravalent Platinum. Inorg Chem 1998; 37:5452-5459. [PMID: 11670687 DOI: 10.1021/ic980186r] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
New pentacyano complexes of tri- and tetravalent platinum were obtained in aqueous solution and characterized by multinuclear NMR ((195)Pt, (13)C) supported by Raman spectroscopy. The complexes form as products of redox decomposition of metal-metal bonded platinum-thallium compounds. The trimetallic [(NC)(5)Pt-Tl-Pt(CN)(5)](3)(-) yields a new dimeric compound of Pt(III), [(NC)(5)Pt-Pt(CN)(5)](4)(-). The latter is a rare representative of unbridged dimeric complexes of trivalent platinum; it was obtained through an oxidation of monomeric square-planar platinum(II) species by a metal complex. From the bimetallic compounds [(NC)(5)Pt-Tl(CN)(n)()](n)()(-) (n = 0-2) tetravalent platinum complexes are formed. Depending on the Pt-Tl species, electron transfer is initiated either by heat or by exposition to light; it results in [Pt(CN)(6)](2)(-) or in the hitherto unknown complexes [Pt(CN)(5)(OH)](2)(-) and [Pt(CN)(5)(H(2)O)](-), with the (195)Pt NMR chemical shift values 1638.7 (+/-0.6) and 1766.7 (+/-0.6), respectively. Proton dissociation constant of [Pt(CN)(5)(H(2)O)](-) has been determined, pK(a) = 2.51 (+/-0.01). In both Pt(III) and Pt(IV) pentacyano complexes platinum is hexacoordinated forming a pseudo-octahedron with two types of cyano ligands: four equivalent equatorial cyanides and one apical. Related platinum(IV) species, [Pt(CN)(5)X](2)(-) (X = Cl, Br, I), have also been studied. In all the pentacyano complexes a pronounced trans influence is reflected in a substantial difference between the (195)Pt-(13)C spin-spin coupling constant for the apical (trans) and the equatorial (cis) carbon sites. In this respect, the studied X ligands can be ordered in a series of decreasing (195)Pt-(13)C(trans) coupling constant: H(2)O > Cl(-) > Br(-) > I(-) > OH(-) > CN(-).
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Affiliation(s)
- Mikhail Maliarik
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospect 31, Moscow 117907, Russia, Department of Chemistry, Inorganic Chemistry, The Royal Institute of Technology (KTH), S-100 44 Stockholm, Sweden, and Department of Inorganic and Analytical Chemistry, Lajos Kossuth University (KLTE), H-4010 Debrecen, Pf. 21, Hungary
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Maliarik M, Berg K, Glaser J, Sandström M, Tóth I. New Class of Oligonuclear Platinum−Thallium Compounds with a Direct Metal−Metal Bond. 2. Structural Characterization of the Complexes. Inorg Chem 1998. [DOI: 10.1021/ic970667v] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mikhail Maliarik
- Department of Chemistry, Inorganic Chemistry, The Royal Institute of Technology (KTH), S-100 44 Stockholm, Sweden, and Department of Inorganic and Analytical Chemistry, Lajos Kossuth University (KLTE), H-4010 Debrecen, Pf. 21, Hungary
| | - Katja Berg
- Department of Chemistry, Inorganic Chemistry, The Royal Institute of Technology (KTH), S-100 44 Stockholm, Sweden, and Department of Inorganic and Analytical Chemistry, Lajos Kossuth University (KLTE), H-4010 Debrecen, Pf. 21, Hungary
| | - Julius Glaser
- Department of Chemistry, Inorganic Chemistry, The Royal Institute of Technology (KTH), S-100 44 Stockholm, Sweden, and Department of Inorganic and Analytical Chemistry, Lajos Kossuth University (KLTE), H-4010 Debrecen, Pf. 21, Hungary
| | - Magnus Sandström
- Department of Chemistry, Inorganic Chemistry, The Royal Institute of Technology (KTH), S-100 44 Stockholm, Sweden, and Department of Inorganic and Analytical Chemistry, Lajos Kossuth University (KLTE), H-4010 Debrecen, Pf. 21, Hungary
| | - Imre Tóth
- Department of Chemistry, Inorganic Chemistry, The Royal Institute of Technology (KTH), S-100 44 Stockholm, Sweden, and Department of Inorganic and Analytical Chemistry, Lajos Kossuth University (KLTE), H-4010 Debrecen, Pf. 21, Hungary
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Prenzler PD, Heath GA, Lee SB, Raptis RG. Diplatinum(III) tetrakis(β-diketonato) complexes exemplifying the unsupported Pt–Pt bond. Chem Commun (Camb) 1996. [DOI: 10.1039/cc9960002271] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Umakoshi K, Sasaki Y. Quadruply Bridged Dinuclear Complexes of Platinum, Palladium, and Nickel. ADVANCES IN INORGANIC CHEMISTRY 1993. [DOI: 10.1016/s0898-8838(08)60184-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Privalov V, Lapkin V, Tarasov V, Buslaev Y. Structure and Hydrolysis of Heterovalent polynuclear Oxonitrocomplexes of Ptii,iv in Aqueous Solutions by 195Pt and 15N nmr Spectroscopy. MENDELEEV COMMUNICATIONS 1991. [DOI: 10.1070/mc1991v001n02abeh000035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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