1
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Murali M, Latha J, Prakash PA, Sangeetha S, Selvakumaran B, Jaabir MSM. Characterization of [Ru(bpy)2(diamine)]2+ complexes and their DNA binding and cleavage, BSA interaction, cytotoxic, and anticancer mechanistic properties. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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2
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Constable EC, Hartshorn RM, Housecroft CE. 1,1'-Biisoquinolines-Neglected Ligands in the Heterocyclic Diimine Family That Provoke Stereochemical Reflections. Molecules 2021; 26:molecules26061584. [PMID: 33805632 PMCID: PMC7998815 DOI: 10.3390/molecules26061584] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/10/2021] [Accepted: 03/10/2021] [Indexed: 11/16/2022] Open
Abstract
1,1′-Biisoquinolines are a class of bidentate nitrogen donor ligands in the heterocyclic diimine family. This review briefly discusses their properties and the key synthetic pathways available and then concentrates upon their coordination behaviour. The ligands are of interest as they exhibit the phenomenon of atropisomerism (hindered rotation about the C1–C1′ bond). A notation for depicting the stereochemistry in coordination compounds containing multiple stereogenic centers is developed. The consequences of the chirality within the ligand on the coordination behaviour is discussed in detail.
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Affiliation(s)
- Edwin C. Constable
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, CH-4058 Basel, Switzerland;
- Correspondence: ; Tel.: +41-61-207-1001
| | - Richard M. Hartshorn
- School of Physical and Chemical Sciences, University of Canterbury, CT1 1PL Christchurch, New Zealand;
| | - Catherine E. Housecroft
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, CH-4058 Basel, Switzerland;
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3
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Hernández-Ayala LF, Reina M, Flores-Alamo M, Ruiz-Azuara L. Pyridyl based mono and di-selenoethers: Synthesis, characterization and DFT study. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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4
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Sharma M, Ganeshpandian M, Majumder M, Tamilarasan A, Sharma M, Mukhopadhyay R, Islam NS, Palaniandavar M. Octahedral copper(ii)-diimine complexes of triethylenetetramine: effect of stereochemical fluxionality and ligand hydrophobicity on CuII/CuIredox, DNA binding and cleavage, cytotoxicity and apoptosis-inducing ability. Dalton Trans 2020; 49:8282-8297. [DOI: 10.1039/d0dt00928h] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Stereochemical fluxionality of octahedral [Cu(trien)(diimine)]2+complexes determines the CuII/CuIredox potential, DNA binding affinity, ROS generation, cytotoxicity and apoptosis-inducing ability.
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Affiliation(s)
- Mitu Sharma
- Department of Chemical Sciences
- Tezpur University
- Tezpur 784 028
- India
| | - Mani Ganeshpandian
- Department of Chemistry
- SRM Institute of Science & Technology
- Chennai 603 203
- India
| | - Munmi Majumder
- Department of Molecular Biology and Biotechnology
- Tezpur University
- Tezpur 784 028
- India
| | | | - Mukesh Sharma
- Department of Chemical Sciences
- Tezpur University
- Tezpur 784 028
- India
| | - Rupak Mukhopadhyay
- Department of Molecular Biology and Biotechnology
- Tezpur University
- Tezpur 784 028
- India
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5
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Toyama M, Takizawa T, Morita I, Nagao N, Kuramochi Y, Ishida H. Syntheses and Characterization of a Pair of Isomers of Heteroleptic Bis(Bidentate) Ruthenium(II) Complexes with Two Different Monodentate Ligands. Chemistry 2019; 25:16582-16590. [PMID: 31596008 DOI: 10.1002/chem.201903706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 09/18/2019] [Indexed: 01/24/2023]
Abstract
Two isomers of heteroleptic bis(bidentate) ruthenium(II) complexes with dimethyl sulfoxide (dmso) and chloride ligands, trans(Cl,Nbpy )- and trans(Cl,NHdpa )-[Ru(bpy)Cl(dmso-S)(Hdpa)]+ (bpy: 2,2'-bipyridine; Hdpa: di-2-pyridylamine), are synthesized. This is the first report on the selective synthesis of a pair of isomers of cis-[Ru(L)(L')XY]n+ (L≠L': bidentate ligands; X≠Y: monodentate ligands). The structures of the ruthenium(II) complexes are clarified by means of X-ray crystallography, and the signals in the 1 H NMR spectra are assigned based on 1 H-1 H COSY spectra. The colors of the two isomers are clearly different in both the solid state and solution: the trans(Cl,Nbpy ) isomer has a deep red color, whereas the trans(Cl,NHdpa ) isomer is yellow. Although both complexes have intense absorption bands at λ≈440-450 nm, only the trans(Cl,Nbpy ) isomer has a shoulder band at λ≈550 nm. DFT calculations indicate that the LUMOs of both isomers are the π* orbitals in the bpy ligand, and that the LUMO level of the trans(Cl,Nbpy ) isomer is lower than that of the trans(Cl,NHdpa ) isomer due to the trans effect of the Cl ligand; thus resulting in the appearance of the shoulder band. The HOMO levels are almost the same in both isomers. The energy levels are experimentally supported by cyclic voltammograms, in which these isomers have different reduction potentials and similar oxidation potentials.
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Affiliation(s)
- Mari Toyama
- Current address: Osaka Prefecture University College of Technology, 26-12 Saiwaicho, Neyagawa, Osaka, 572-8572, Japan.,Department of Chemistry of Functional Molecules, Faculty of Science and Engineering, Konan University, 8-9-1 Okamoto, Higashinada, Kobe, 658-8501, Japan.,Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashi-Mita, Tama-ku, Kawasaki, Kanagawa, 214-8571, Japan
| | - Takako Takizawa
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashi-Mita, Tama-ku, Kawasaki, Kanagawa, 214-8571, Japan
| | - Itaru Morita
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashi-Mita, Tama-ku, Kawasaki, Kanagawa, 214-8571, Japan
| | - Noriharu Nagao
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashi-Mita, Tama-ku, Kawasaki, Kanagawa, 214-8571, Japan
| | - Yusuke Kuramochi
- Department of Chemistry, Graduate School of Science, Kitasato University, 1-15-1 Kitasato, Sagamihara, Kanagawa, 252-0373, Japan.,Current address: Department of Chemistry, Faculty of Science Division II, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Hitoshi Ishida
- Department of Chemistry, Graduate School of Science, Kitasato University, 1-15-1 Kitasato, Sagamihara, Kanagawa, 252-0373, Japan
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6
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Misawa-Suzuki T, Matsuya K, Watanabe T, Nagao H. Triply bridged dinuclear ruthenium complexes bearing alkylbis(2-pyridylmethyl)amine in the mixed-valence state of Ru(ii)–Ru(iii). Dalton Trans 2018; 47:16182-16189. [DOI: 10.1039/c8dt03507e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Five diruthenium complexes in the mixed-valence state of Ru(ii)–Ru(iii), triply bridged by halogeno and methoxido ligands, were newly synthesized and compared.
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Affiliation(s)
- T. Misawa-Suzuki
- Department of Materials and Life Sciences
- Sophia University
- Tokyo 102-8554
- Japan
| | - K. Matsuya
- Department of Materials and Life Sciences
- Sophia University
- Tokyo 102-8554
- Japan
| | - T. Watanabe
- Department of Materials and Life Sciences
- Sophia University
- Tokyo 102-8554
- Japan
| | - H. Nagao
- Department of Materials and Life Sciences
- Sophia University
- Tokyo 102-8554
- Japan
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7
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Toledano-Magaña Y, García-Ramos JC, Torres-Gutiérrez C, Vázquez-Gasser C, Esquivel-Sánchez JM, Flores-Alamo M, Ortiz-Frade L, Galindo-Murillo R, Nequiz M, Gudiño-Zayas M, Laclette JP, Carrero JC, Ruiz-Azuara L. Water-Soluble Ruthenium (II) Chiral Heteroleptic Complexes with Amoebicidal in Vitro and in Vivo Activity. J Med Chem 2017; 60:899-912. [PMID: 28075589 DOI: 10.1021/acs.jmedchem.6b00795] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Three water-soluble Ru(II) chiral heteroleptic coordination compounds [Ru(en)(pdto)]Cl2 (1), [Ru(gly)(pdto)]Cl (2), and [Ru(acac)(pdto)]Cl (3), where pdto = 2,2'-[1,2-ethanediylbis-(sulfanediyl-2,1-ethanediyl)]dipyridine, en = ethylendiamine, gly = glycinate, and acac = acetylacetonate, have been synthezised and fully characterized. The crystal structures of compounds 1-3 are described. The IC50 values for compounds 1-3 are within nanomolar range (14, 12, and 6 nM, respectively). The cytotoxicity for human peripheral blood lymphocytes is extremely low (>100 μM). Selectivity indexes for Ru(II) compounds are in the range 700-1300. Trophozoites exposed to Ru(II) compounds die through an apoptotic pathway triggered by ROS production. The orally administration to infected mice induces a total elimination of the parasite charge in mice faeces 1-2-fold faster than metronidazole. Besides, all compounds inhibit the trophozoite proliferation in amoebic liver abscess induced in hamster. All our results lead us to propose these compounds as promising candidates as antiparasitic agents.
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Affiliation(s)
- Yanis Toledano-Magaña
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México , Avenida Universidad 3000, 04510, Mexico City, Mexico
| | - Juan C García-Ramos
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México , Avenida Universidad 3000, 04510, Mexico City, Mexico.,Departamento de Fisicoquímica, Instituto de Química, Universidad Nacional Autónoma de México , Avenida Universidad 3000, 04510, Mexico City, Mexico
| | - Carolina Torres-Gutiérrez
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México , Avenida Universidad 3000, 04510, Mexico City, Mexico
| | - Cristina Vázquez-Gasser
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México , Avenida Universidad 3000, 04510, Mexico City, Mexico
| | - José M Esquivel-Sánchez
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México , Avenida Universidad 3000, 04510, Mexico City, Mexico
| | - Marcos Flores-Alamo
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México , Avenida Universidad 3000, 04510, Mexico City, Mexico
| | - Luis Ortiz-Frade
- Departamento de Electroquímica, Centro de Investigación y Desarrollo Tecnológico en Electroquímica SC , Parque Tecnológico Querétaro Sanfandila, Pedro de Escobedo, CP 76703 Querétaro México
| | - Rodrigo Galindo-Murillo
- Department of Medicinal Chemistry, College of Pharmacy, University of Utah , Skaggs Hall 201, Salt Lake City, Utah 84112, United States
| | - Mario Nequiz
- Departamento de Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México , Dr. Balmis 148, Col. Doctores, 06726, Mexico City, Mexico
| | - Marco Gudiño-Zayas
- Departamento de Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México , Dr. Balmis 148, Col. Doctores, 06726, Mexico City, Mexico
| | - Juan P Laclette
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México , Avenida Universidad 3000, 04510, Mexico City, Mexico
| | - Julio C Carrero
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México , Avenida Universidad 3000, 04510, Mexico City, Mexico
| | - Lena Ruiz-Azuara
- Departamento de Química Inorgánica y Nuclear, Facultad de Química, Universidad Nacional Autónoma de México , Avenida Universidad 3000, 04510, Mexico City, Mexico
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8
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Complexes of cis-bis(triphenylphosphine)ruthenium(II) with N,S-donor thiobenzhydrazones of polycyclic aromatic aldehydes: Synthesis, properties and structures. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.01.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Kalaivani P, Prabhakaran R, Vaishnavi E, Rueffer T, Lang H, Poornima P, Renganathan R, Vijaya Padma V, Natarajan K. Synthesis, structure, DNA/protein binding and in vitro cytotoxicity of new ruthenium metallates. Inorg Chem Front 2014. [DOI: 10.1039/c3qi00070b] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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10
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Al-Rawashdeh NAF, Chatterjee S, Krause JA, Connick WB. Ruthenium Bis-diimine Complexes with a Chelating Thioether Ligand: Delineating 1,10-Phenanthrolinyl and 2,2′-Bipyridyl Ligand Substituent Effects. Inorg Chem 2013; 53:294-307. [DOI: 10.1021/ic4022454] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nathir A. F. Al-Rawashdeh
- Department of Applied Chemical Sciences, Jordan University of Science & Technology, P.O. Box 3030, Irbid-22110, Jordan
| | - Sayandev Chatterjee
- Energy
and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Jeanette A. Krause
- Department
of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
| | - William B. Connick
- Department
of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
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Loganathan R, Ramakrishnan S, Suresh E, Riyasdeen A, Akbarsha MA, Palaniandavar M. Mixed ligand copper(II) complexes of N,N-bis(benzimidazol-2-ylmethyl)amine (BBA) with diimine co-ligands: efficient chemical nuclease and protease activities and cytotoxicity. Inorg Chem 2012; 51:5512-32. [PMID: 22559171 DOI: 10.1021/ic2017177] [Citation(s) in RCA: 175] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A series of mononuclear mixed ligand copper(II) complexes [Cu(bba)(diimine)](ClO(4))(2)1-4, where bba is N,N-bis(benzimidazol-2-ylmethyl)amine and diimine is 2,2'-bipyridine (bpy) (1), 1,10-phenanthroline (phen) (2), 5,6-dimethyl-1,10-phenanthroline (5,6-dmp) (3), or dipyrido[3,2-d:2',3'-f]quinoxaline (dpq) (4), have been isolated and characterized by analytical and spectral methods. The coordination geometry around copper(II) in 2 is described as square pyramidal with the two benzimidazole nitrogen atoms of the primary ligand bba and the two nitrogen atoms of phen (2) co-ligand constituting the equatorial plane and the amine nitrogen atom of bba occupying the apical position. In contrast, the two benzimidazole nitrogen atoms and the amine nitrogen atom of bba ligand and one of the two nitrogen atoms of 5,6-dmp constitute the equatorial plane of the trigonal bipyramidal distorted square based pyramidal (TBDSBP) coordination geometry of 3 with the other nitrogen atom of 5,6-dmp occupying the apical position. The structures of 1-4 have been optimized by using the density functional theory (DFT) method at the B3LYP/6-31G(d,p) level. Absorption spectral titrations with Calf Thymus (CT) DNA reveal that the intrinsic DNA binding affinity of the complexes depends upon the diimine co-ligand, dpq (4) > 5,6-dmp (3) > phen (2) > bpy (1). The DNA binding affinity of 4 is higher than 2 revealing that the π-stacking interaction of the dpq ring in between the DNA base pairs with the two bzim moieties of the bba ligand stacked along the DNA surface is more intimate than that of phen. The complex 3 is bound to DNA more strongly than 1 and 2 through strong hydrophobic interaction of the methyl groups on 5,6-positions of the phen ring in the DNA grooves. The extent of the decrease in relative emission intensities of DNA-bound ethidium bromide (EB) upon adding the complexes parallels the trend in DNA binding affinities. The large enhancement in relative viscosity of DNA upon binding to 3 and 4 supports the DNA binding modes proposed. Interestingly, the 5,6-dmp complex 3 is selective in exhibiting a positive induced CD band (ICD) upon binding to DNA suggesting that it induces a B to A conformational change. In contrast, 2 and 4 show induced CD responses indicating their involvement in strong DNA binding. Interestingly, only the dpq complex 4, which displays the strongest DNA binding affinity and is efficient in cleaving DNA in the absence of an activator with a rate constant of 5.8 ± 0.1 h(-1), which is higher than the uncatalyzed rate of DNA cleavage. All the complexes exhibit oxidative DNA cleavage ability, which varies as 4 > 2 > 3 > 1 (ascorbic acid) and 3 > 2 > 4 > 1 (H(2)O(2)). Also, the complexes cleave the protein bovine serum albumin in the presence of H(2)O(2) as an activator with the cleavage ability varying in the order 3 > 4 > 2 > 1. The highest efficiency of 3 to cleave both DNA and protein in the presence of H(2)O(2) is consistent with its strong hydrophobic interaction with the biopolymers. The IC(50) values of 1-4 against cervical cancer cell lines (SiHa) are almost equal to that of cisplatin, indicating that they have the potential to act as effective anticancer drugs in a time-dependent manner. The morphological assessment data obtained by using acridine orange/ethidium bromide (AO/EB) and Hoechst 33258 staining reveal that 3 induces apoptosis much more effectively than the other complexes. Also, the alkaline single-cell gel electrophoresis study (comet assay) suggests that the same complex induces DNA fragmentation more efficiently than others.
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Affiliation(s)
- Rangasamy Loganathan
- Centre for Bioinorganic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli 620 024, Tamilnadu, India
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12
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Maiti BK, Görls H, Klobes O, Imhof W. Cleavage of thioether bridges in dinuclear ruthenium complexes by Lewis bases: Synthesis and crystal structure of [RuCl2(CO)(THT)(PPh3)2]. INORG CHEM COMMUN 2011. [DOI: 10.1016/j.inoche.2011.05.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Jahng Y, Hong YH, Rahman AM. Synthesis and properties of ruthenium(II) complexes of 3,3′-polymethylene-2-(pyrid-2′-yl)benzo[b]-1,10-phenanthrolines. J COORD CHEM 2010. [DOI: 10.1080/00958972.2010.487101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Yurngdong Jahng
- a College of Pharmacy, Yeungnam University , Gyeongsan 712-749, Korea
| | - Young Hwan Hong
- a College of Pharmacy, Yeungnam University , Gyeongsan 712-749, Korea
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Jude H, Rein FN, Chen W, Scott BL, Dattelbaum DM, Rocha RC. Pyrazole and Pyrazolyl Complexes ofcis-Bis(2,2′-bipyridine)chlororuthenium(II): Synthesis, Structural and Electronic Characterization, and Acid-Base Chemistry. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200801086] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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15
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Matsuya K, Fukui S, Hoshino Y, Nagao H. A mixed-valence diruthenium complex, triply bridged by mixed-moieties of chloro and methoxo ligands. Dalton Trans 2009:7876-8. [DOI: 10.1039/b912377f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Rajendiran V, Murali M, Suresh E, Palaniandavar M, Periasamy VS, Akbarsha MA. Non-covalent DNA binding and cytotoxicity of certain mixed-ligand ruthenium(ii) complexes of 2,2′-dipyridylamine and diimines. Dalton Trans 2008:2157-70. [DOI: 10.1039/b715077f] [Citation(s) in RCA: 132] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Rajendiran V, Murali M, Suresh E, Sinha S, Somasundaram K, Palaniandavar M. Mixed ligand ruthenium(ii) complexes of bis(pyrid-2-yl)-/bis(benzimidazol-2-yl)-dithioether and diimines: Study of non-covalent DNA binding and cytotoxicity. Dalton Trans 2008:148-63. [DOI: 10.1039/b710578a] [Citation(s) in RCA: 113] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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18
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Murali M, Palaniandavar M. Synthesis, spectral and electrochemical properties of mixed-ligand ruthenium(II) complexes of bis(pyrid-2-yl)- and bis(benzimidazol-2-yl)-dithioether ligands: Effect of an asymmetric diimine co-ligand. Polyhedron 2007. [DOI: 10.1016/j.poly.2007.04.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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20
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Li Y, Huffman JC, Flood AH. Can terdentate 2,6-bis(1,2,3-triazol-4-yl)pyridines form stable coordination compounds? Chem Commun (Camb) 2007:2692-4. [PMID: 17594022 DOI: 10.1039/b703301j] [Citation(s) in RCA: 231] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first structurally characterized examples of the 1,2,3-triazole motif employed in a terdentate ligand display enhanced steric freedom and a facile receptivity towards a reversible aquation in the case of an electrogenerated Fe(III) state.
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Affiliation(s)
- Yongjun Li
- Chemistry Department, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, USA
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