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Jiménez J, Sanz JA, Serrano JL, Barberá J, Oriol L. Cyclotriphosphazenes as Scaffolds for the Synthesis of Metallomesogens. Inorg Chem 2020; 59:4842-4857. [PMID: 32167295 DOI: 10.1021/acs.inorgchem.0c00124] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
(Amino)cyclotriphosphazenes have been used as new scaffolds for the synthesis of silver(I) metallomesogens. Two cyclotriphosphazenes, [N3P3(NHCy)6] (phos-1) and nongem-trans-[N3P3(NHCy)3(NMe2)3] (phos-2), were reacted with the silver complex having a pro-mesogenic ligand, [Ag(OTf)L] (L = CNC6H4{OC(O)C6H2(3,4,5-(OC10H21)3)}-4; OTf = OSO2CF3), in different molar ratios, 1:1, 1:2, or 1:3, to give two series of cationic metallophosphazenes, [N3P3(NHCy)6{AgL}n](TfO)n (phos-1.n) and nongem-trans-[N3P3(NHCy)3(NMe2)3{AgL}n](TfO)n (phos-2.n) with n = 1, 2, or 3. The chemical structure of these compounds, deduced from spectroscopic techniques, was in accordance with coordination of the silver fragments "AgL" to nitrogen atoms of the phosphazene ring, whereby their number n depends on the molar ratio used. Despite the presence of the bulky substituents on the core N atoms, cyclotriphosphazenes coordinated to three "AgL" units exhibited mesomorphism at room temperature. The mesophase was characterized as columnar hexagonal according to the optical microscopy and X-ray diffraction studies. A model based on an intermolecular association in pairs of the metallocyclotriphosphazenes having three AgL units has been proposed in order to explain the mesomorphic columnar arrangement in these materials. Starting silver complex, [Ag(OTf)L], also exhibited a columnar hexagonal mesophase at room temperature.
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Affiliation(s)
- Josefina Jiménez
- Departamento de Quı́mica Inorgánica, Facultad de Ciencias - Instituto de Sı́ntesis Quı́mica y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, Zaragoza 50009, Spain
| | - José Antonio Sanz
- Departamento de Quı́mica Inorgánica, Facultad de Ciencias - Instituto de Sı́ntesis Quı́mica y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, Zaragoza 50009, Spain
| | - José Luis Serrano
- Departamento de Quı́mica Orgánica, Facultad de Ciencias - Instituto Universitario de Nanociencia de Aragón (INA), Universidad de Zaragoza, Zaragoza 50018, Spain.,Departamento de Quı́mica Orgánica, Facultad de Ciencias - Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza-CSIC, Zaragoza 50009, Spain
| | - Joaquín Barberá
- Departamento de Quı́mica Orgánica, Facultad de Ciencias - Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza-CSIC, Zaragoza 50009, Spain
| | - Luis Oriol
- Departamento de Quı́mica Orgánica, Facultad de Ciencias - Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza-CSIC, Zaragoza 50009, Spain
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Gascón E, Maisanaba S, Otal I, Valero E, Repetto G, Jones PG, Jiménez J. (Amino)cyclophosphazenes as Multisite Ligands for the Synthesis of Antitumoral and Antibacterial Silver(I) Complexes. Inorg Chem 2020; 59:2464-2483. [PMID: 31984738 DOI: 10.1021/acs.inorgchem.9b03334] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The reactivity of the multisite (amino)cyclotriphosphazene ligands, [N3P3(NHCy)6] and [N3P3(NHCy)3(NMe2)3], has been explored in order to obtain silver(I) metallophosphazene complexes. Two series of cationic silver(I) metallophosphazenes were obtained and characterized: [N3P3(NHCy)6{AgL}n](TfO)n [n = 2, L = PPh3 (2), PPh2Me (4); n = 3, L = PPh3 (3), PPh2Me (5), TPA (TPA = 1,3,5-triaza-7-phosphaadamantane, 6)] and nongem-trans-[N3P3(NHCy)3(NMe2)3{AgL}n](TfO)n [n = 2, L = PPh3 (7), PPh2Me (9); n = 3, L = PPh3 (8), PPh2Me (10)]. 5, 7, and 9 have also been characterized by single-crystal X-ray diffraction, thereby allowing key bonding information to be obtained. Compounds 2-6, 9, and 10 were screened for in vitro cytotoxic activity against two tumor human cell lines, MCF7 (breast adenocarcinoma) and HepG2 (hepatocellular carcinoma), and for antimicrobial activity against five bacterial species including Gram-positive, Gram-negative, and Mycobacteria strains. Both the IC50 and MIC values revealed excellent biological activity for these metal complexes, compared with their precursors and cisplatin and also AgNO3 and silver sulfadiazine, respectively. Both IC50 and MIC values are among the lowest values found for any silver derivatives against the cell lines and bacterial strains used in this work. The structure-activity relationships were clear. The most cytotoxic and antimicrobial derivatives were those with the triphenylphosphane and [N3P3(NHCy)6] ligands. A significant improvement in the activity was also observed upon a rise in the number of silver atoms linked to the phosphazene ring.
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Affiliation(s)
- Elena Gascón
- Departamento de Química Inorgánica, Facultad de Ciencias, Instituto de Síntesis Química y Catálisis Homogénea , Universidad de Zaragoza-CSIC , Pedro Cerbuna 12 , 50009 Zaragoza , Spain
| | - Sara Maisanaba
- Departamento de Biología Molecular e Ingeniería Bioquímica, Área de Toxicología , Universidad Pablo de Olavide , Ctra. Utrera, Km 1 , 41013 Sevilla , Spain
| | - Isabel Otal
- Grupo de Genética de Micobacterias, Departamento de Microbiología, Medicina Preventiva y Salud Pública , Universidad de Zaragoza , Zaragoza 50009 , Spain.,Instituto de Salud Carlos III , CIBER de Enfermedades Respiratorias , E-28029 Madrid , Spain
| | - Eva Valero
- Departamento de Biología Molecular e Ingeniería Bioquímica, Área Nutrición y Bromatología , Universidad Pablo de Olavide , Ctra. Utrera, Km 1 , 41013 Sevilla , Spain
| | - Guillermo Repetto
- Departamento de Biología Molecular e Ingeniería Bioquímica, Área de Toxicología , Universidad Pablo de Olavide , Ctra. Utrera, Km 1 , 41013 Sevilla , Spain
| | - Peter G Jones
- Institut für Anorganische und Analytische Chemie , Technische Universität Braunschweig , Hagenring 30 , D-38106 Braunschweig , Germany
| | - Josefina Jiménez
- Departamento de Química Inorgánica, Facultad de Ciencias, Instituto de Síntesis Química y Catálisis Homogénea , Universidad de Zaragoza-CSIC , Pedro Cerbuna 12 , 50009 Zaragoza , Spain
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Li X, Jiang F, Chen L, Wu M, Chen Q, Bu Y, Hong M. Three novel 3D coordination polymers based on a flexible multisite cyclotetraphosphazene ligand. Dalton Trans 2012; 41:14038-41. [DOI: 10.1039/c2dt31852k] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ainscough EW, Allcock HR, Brodie AM, Gordon KC, Hindenlang MD, Horvath R, Otter CA. Spectroscopic Studies of Phosphazene Polymers Containing Photoluminescent Metal Complexes. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100341] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Eric W. Ainscough
- Chemistry‐Institute of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand, Fax: +64‐6‐3505602
| | - Harry R. Allcock
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
| | - Andrew M. Brodie
- Chemistry‐Institute of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand, Fax: +64‐6‐3505602
| | - Keith C. Gordon
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Chemistry, University of Otago, Dunedin 9054, New Zealand, Fax: +64‐3‐4797906
| | - Mark D. Hindenlang
- Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA
| | - Raphael Horvath
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Chemistry, University of Otago, Dunedin 9054, New Zealand, Fax: +64‐3‐4797906
| | - Carl A. Otter
- Chemistry‐Institute of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand, Fax: +64‐6‐3505602
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Horvath R, Otter CA, Gordon KC, Brodie AM, Ainscough EW. Excited States of Ru(II) and Re(I) Bipyridyl Complexes Attached to Cyclotriphosphazenes: A Synthetic, Spectroscopic, and Computational Study. Inorg Chem 2010; 49:4073-83. [DOI: 10.1021/ic902171j] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Raphael Horvath
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Chemistry, University of Otago, Dunedin, New Zealand
| | - Carl A. Otter
- Chemistry-Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand
| | - Keith C. Gordon
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Chemistry, University of Otago, Dunedin, New Zealand
| | - Andrew M. Brodie
- Chemistry-Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand
| | - Eric W. Ainscough
- Chemistry-Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand
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Davidson RJ, Ainscough EW, Brodie AM, Harrison JA, Waterland MR. The Nature of the Phosphazene Nitrogen-Metal Bond: DFT Calculations on 2-(Pyridyloxy)cyclophosphazene Complexes. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.200901198] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Jiménez J, Laguna A, Benouazzane M, Sanz JA, Díaz C, Valenzuela M, Jones P. Metallocyclo- and Polyphosphazenes Containing Gold or Silver: Thermolytic Transformation into Nanostructured Materials. Chemistry 2009; 15:13509-20. [DOI: 10.1002/chem.200902180] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ainscough EW, Brodie AM, Davidson RJ, Moubaraki B, Murray KS, Otter CA, Waterland MR. Metal−Metal Communication in Copper(II) Complexes of Cyclotetraphosphazene Ligands. Inorg Chem 2008; 47:9182-92. [DOI: 10.1021/ic8008706] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eric W. Ainscough
- Chemistry-Institute of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand 4442, and School of Chemistry, Building 23, Monash University, Clayton, Victoria 3800, Australia
| | - Andrew M. Brodie
- Chemistry-Institute of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand 4442, and School of Chemistry, Building 23, Monash University, Clayton, Victoria 3800, Australia
| | - Ross J. Davidson
- Chemistry-Institute of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand 4442, and School of Chemistry, Building 23, Monash University, Clayton, Victoria 3800, Australia
| | - Boujemaa Moubaraki
- Chemistry-Institute of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand 4442, and School of Chemistry, Building 23, Monash University, Clayton, Victoria 3800, Australia
| | - Keith S. Murray
- Chemistry-Institute of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand 4442, and School of Chemistry, Building 23, Monash University, Clayton, Victoria 3800, Australia
| | - Carl A. Otter
- Chemistry-Institute of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand 4442, and School of Chemistry, Building 23, Monash University, Clayton, Victoria 3800, Australia
| | - Mark R. Waterland
- Chemistry-Institute of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand 4442, and School of Chemistry, Building 23, Monash University, Clayton, Victoria 3800, Australia
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