Synthesis and Characterization of a New Cu(II) Paddle-Wheel-like Complex with 4-Vinylbenzoate as an Inorganic Node for Metal–Organic Framework Material Design
A new Cu(II) paddle-wheel-like complex with 4-vinylbenzoate was synthesized using acetonitrile as the solvent. The complex was characterized by X-ray crystal diffraction, FT-IR, diffuse reflectance spectroscopy, thermogravimetric, differential scanning calorimetric, magnetic susceptibility, and elec...
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| Online Access: | https://www.mdpi.com/1996-1944/16/13/4866 |
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| author | Egla Yareth Bivián-Castro Marcos Flores-Alamo Roberto Escudero Virginia Gómez-Vidal José J. N. Segoviano-Garfias Jesus Castañeda-Contreras Quetzalcoatl Enrique Saavedra-Arroyo |
| author_facet | Egla Yareth Bivián-Castro Marcos Flores-Alamo Roberto Escudero Virginia Gómez-Vidal José J. N. Segoviano-Garfias Jesus Castañeda-Contreras Quetzalcoatl Enrique Saavedra-Arroyo |
| author_sort | Egla Yareth Bivián-Castro |
| collection | DOAJ |
| description | A new Cu(II) paddle-wheel-like complex with 4-vinylbenzoate was synthesized using acetonitrile as the solvent. The complex was characterized by X-ray crystal diffraction, FT-IR, diffuse reflectance spectroscopy, thermogravimetric, differential scanning calorimetric, magnetic susceptibility, and electronic paramagnetic resonance analyses. The X-ray crystal diffraction analysis indicated that each copper ion was bound at an equatorial position to four oxygen atoms from the carboxylate groups of the 4-vinylbenzoate ligand in a square-based pyramidal geometry. The distance between the copper ions was 2.640(9) Å. The acetonitrile molecules were coordinated at the axial position to the copper ions. Exposure of the Cu(II) complex to humid air promoted the gradual replacement of the coordinated acetonitrile by water molecules, but the complex structure integrity remained. The EPR spectra exhibited signals attributed to the presence of a mixture of the monomeric (S = ½) and dimeric (S = 1) copper species in a possible 3:1 ratio. The magnetic studies revealed a peak at 50–100 K, which could be associated with the oxygen absorption capacity of the Cu(II)–vba complex. |
| first_indexed | 2024-03-11T01:35:01Z |
| format | Article |
| id | doaj.art-393acb296080491db714f615f7f16e9d |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T01:35:01Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-393acb296080491db714f615f7f16e9d2023-11-18T17:00:59ZengMDPI AGMaterials1996-19442023-07-011613486610.3390/ma16134866Synthesis and Characterization of a New Cu(II) Paddle-Wheel-like Complex with 4-Vinylbenzoate as an Inorganic Node for Metal–Organic Framework Material DesignEgla Yareth Bivián-Castro0Marcos Flores-Alamo1Roberto Escudero2Virginia Gómez-Vidal3José J. N. Segoviano-Garfias4Jesus Castañeda-Contreras5Quetzalcoatl Enrique Saavedra-Arroyo6Centro Universitario de los Lagos, Universidad de Guadalajara, Av. Enrique Díaz de León 1144, Col. Paseos de la Montaña, Lagos de Moreno 47460, Jalisco, MexicoFacultad de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior S/N, Coyoacán, Mexico City 04510, MexicoInstituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior S/N, Coyoacán, Mexico City 04510, MexicoInstituto de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior S/N, Coyoacán, Mexico City 04510, MexicoDivisión de Ciencias de la Vida, Carr. Irapuato-Silao Km. 12.5, Ex-Hacienda El Copal, Irapuato 36821, Guanajuato, MexicoCentro Universitario de los Lagos, Universidad de Guadalajara, Av. Enrique Díaz de León 1144, Col. Paseos de la Montaña, Lagos de Moreno 47460, Jalisco, MexicoInstituto Tecnológico Superior de Irapuato, Carr. Irapuato-Silao Km. 12.5, Ex-Hacienda El Copal, Irapuato 36821, Guanajuato, MexicoA new Cu(II) paddle-wheel-like complex with 4-vinylbenzoate was synthesized using acetonitrile as the solvent. The complex was characterized by X-ray crystal diffraction, FT-IR, diffuse reflectance spectroscopy, thermogravimetric, differential scanning calorimetric, magnetic susceptibility, and electronic paramagnetic resonance analyses. The X-ray crystal diffraction analysis indicated that each copper ion was bound at an equatorial position to four oxygen atoms from the carboxylate groups of the 4-vinylbenzoate ligand in a square-based pyramidal geometry. The distance between the copper ions was 2.640(9) Å. The acetonitrile molecules were coordinated at the axial position to the copper ions. Exposure of the Cu(II) complex to humid air promoted the gradual replacement of the coordinated acetonitrile by water molecules, but the complex structure integrity remained. The EPR spectra exhibited signals attributed to the presence of a mixture of the monomeric (S = ½) and dimeric (S = 1) copper species in a possible 3:1 ratio. The magnetic studies revealed a peak at 50–100 K, which could be associated with the oxygen absorption capacity of the Cu(II)–vba complex.https://www.mdpi.com/1996-1944/16/13/4866copperpaddle-wheel-like4-vinylbenzoic acidopen coordination sitesmetal–organic frameworks |
| spellingShingle | Egla Yareth Bivián-Castro Marcos Flores-Alamo Roberto Escudero Virginia Gómez-Vidal José J. N. Segoviano-Garfias Jesus Castañeda-Contreras Quetzalcoatl Enrique Saavedra-Arroyo Synthesis and Characterization of a New Cu(II) Paddle-Wheel-like Complex with 4-Vinylbenzoate as an Inorganic Node for Metal–Organic Framework Material Design Materials copper paddle-wheel-like 4-vinylbenzoic acid open coordination sites metal–organic frameworks |
| title | Synthesis and Characterization of a New Cu(II) Paddle-Wheel-like Complex with 4-Vinylbenzoate as an Inorganic Node for Metal–Organic Framework Material Design |
| title_full | Synthesis and Characterization of a New Cu(II) Paddle-Wheel-like Complex with 4-Vinylbenzoate as an Inorganic Node for Metal–Organic Framework Material Design |
| title_fullStr | Synthesis and Characterization of a New Cu(II) Paddle-Wheel-like Complex with 4-Vinylbenzoate as an Inorganic Node for Metal–Organic Framework Material Design |
| title_full_unstemmed | Synthesis and Characterization of a New Cu(II) Paddle-Wheel-like Complex with 4-Vinylbenzoate as an Inorganic Node for Metal–Organic Framework Material Design |
| title_short | Synthesis and Characterization of a New Cu(II) Paddle-Wheel-like Complex with 4-Vinylbenzoate as an Inorganic Node for Metal–Organic Framework Material Design |
| title_sort | synthesis and characterization of a new cu ii paddle wheel like complex with 4 vinylbenzoate as an inorganic node for metal organic framework material design |
| topic | copper paddle-wheel-like 4-vinylbenzoic acid open coordination sites metal–organic frameworks |
| url | https://www.mdpi.com/1996-1944/16/13/4866 |
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