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Jagadeesan S, Robert SD, Venkatesan P, Sundararaj R, Soundararajan K, Nithianantham JJ. Crystal structure and Hirshfeld surface analysis of 6,6'-dimethyl-2,2'-bi-pyridine-1,1'-diium tetra-chlorido-cobaltate(II). Acta Crystallogr E Crystallogr Commun 2024; 80:709-712. [PMID: 38974160 PMCID: PMC11223711 DOI: 10.1107/s2056989024005152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 05/30/2024] [Indexed: 07/09/2024]
Abstract
In the title mol-ecular salt, (C12H14N2)[CoCl4], the dihedral angle between the pyridine rings of the cation is 52.46 (9)° and the N-C-C-N torsion angle is -128.78 (14)°, indicating that the ring nitro-gen atoms are in anti-clinal conformation. The Cl-Co-Cl bond angles in the anion span the range 105.46 (3)-117.91 (2)°. In the extended structure, the cations and anions are linked by cation-to-anion N-H⋯Cl and C-H⋯Cl inter-actions, facilitating the formation of R 4 4(18) and R 4 4(20) ring motifs. Furthermore, the crystal structure features weak anion-to-cation Cl⋯π inter-actions [Cl⋯π = 3.4891 (12) and 3.5465 (12) Å]. Hirshfeld two-dimensional fingerprint plots revealed that the most significant inter-actions are Cl⋯H/H⋯Cl (45.5%), H⋯H (29.0%), Cl⋯C/C⋯Cl (7.8%), Cl⋯N/N⋯Cl (3.5%), Cl⋯Cl (1.4) and Co⋯H (1%) contacts.
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Affiliation(s)
- Sivaraman Jagadeesan
- Department of Chemistry, Srimad Andavan Arts and Science College (Autonomous), Tiruchirappalli-620005, Tamilnadu, India
| | - Swinton Darious Robert
- PG & Research Department of Chemistry, Bishop Heber College (Autonomous), Tiruchirappalli-620017, Tamilnadu, India
| | - Perumal Venkatesan
- Department of Chemistry, Srimad Andavan Arts and Science College (Autonomous), Tiruchirappalli-620005, Tamilnadu, India
| | | | - Krishnan Soundararajan
- Department of Chemistry, Periyar Maniammai Institute of Science and Technology, Vallam-613403, Thanjavur, Tamilnadu, India
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Su J, Jiang L, Xiao B, Liu Z, Wang H, Zhu Y, Wang J, Zhu X. Dipole-Dipole Tuned Electronic Reconfiguration of Defective Carbon Sites for Efficient Oxygen Reduction into H 2O 2. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310317. [PMID: 38155499 DOI: 10.1002/smll.202310317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/19/2023] [Indexed: 12/30/2023]
Abstract
Metal-free carbon-based materials are one of the most promising electrocatalysts toward 2-electron oxygen reduction reaction (2e-ORR) for on-site production of hydrogen peroxide (H2O2), which however suffer from uncontrollable carbonizations and inferior 2e-ORR selectivity. To this end, a polydopamine (PDA)-modified carbon catalyst with a dipole-dipole enhancement is developed via a calcination-free method. The H2O2 yield rate outstandingly reaches 1.8 mol gcat -1 h-1 with high faradaic efficiency of above 95% under a wide potential range of 0.4-0.7 VRHE, overwhelming most of carbon electrocatalysts. Meanwhile, within a lab-made flow cell, the synthesized ORR electrode features an exceptional stability for over 250 h, achieved a pure H2O2 production efficacy of 306 g kWh-1. By virtue of its industrial-level capabilities, the established flow cell manages to perform a rapid pulp bleaching within 30 min. The superior performance and enhanced selectivity of 2e-ORR is experimentally revealed and attributed to the electronic reconfiguration on defective carbon sites induced by non-covalent dipole-dipole influence between PDA and carbon, thereby prohibiting the cleavage of O-O in OOH intermediates. This proposed strategy of dipole-dipole effects is universally applicable over 1D carbon nanotubes and 2D graphene, providing a practical route to design 2e-ORR catalysts.
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Affiliation(s)
- Jiaxin Su
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
- Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu, 610299, P. R. China
| | - Lei Jiang
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
- Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu, 610299, P. R. China
| | - Bingbing Xiao
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
- Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu, 610299, P. R. China
| | - Zixian Liu
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
- Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu, 610299, P. R. China
| | - Heng Wang
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
- Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu, 610299, P. R. China
| | - Yongfa Zhu
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Jun Wang
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
- Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu, 610299, P. R. China
| | - Xiaofeng Zhu
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
- Tianfu Institute of Research and Innovation, Southwest University of Science and Technology, Chengdu, 610299, P. R. China
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Somnath, Ahmad M, Siddiqui KA. Ratiometric luminescent sensing of a biomarker for sugar consumption in an aqueous medium using a Cu(II) coordination polymer. Dalton Trans 2023; 52:3643-3660. [PMID: 36867431 DOI: 10.1039/d3dt00022b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
An innovative [Cu(Hadp)2(Bimb)]n (KA@CP-S3) coordination polymer expands its dimensionality from a 1D chain to a 2D network. The topological analysis reveals that KA@CP-S3 has 2-connected uninodal 2D 2C1 topology. KA@CP-S3 has capable luminescent sensing for volatile organic compounds (VOCs), nitroaromatics, heavy metal ions, anions, disposed antibiotics (nitrofurantoin and tetracycline) and biomarkers. Intriguingly, KA@CP-S3 exhibits outstanding selective quenching of about 90.7% and 90.5% for the 125 mg dl-1 and 150 mg dl-1 strengths of sucrose, respectively, in aqueous solution along with other ranges in between. The photocatalytic degradation efficiency of KA@CP-S3 for the potentially harmful organic dye Bromophenol Blue displays 95.4%, which is the highest among the 13 dyes that were evaluated.
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Affiliation(s)
- Somnath
- Department of Chemistry, National Institute of Technology Raipur, G E Road, Raipur-492010, Chhattisgarh, India.
| | - Musheer Ahmad
- Department of Applied Chemistry, Faculty of Engineering and Technology, ZHCET, Aligarh Muslim University, Aligarh, UP, 202002, India
| | - Kafeel Ahmad Siddiqui
- Department of Chemistry, National Institute of Technology Raipur, G E Road, Raipur-492010, Chhattisgarh, India.
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Islas-Trejo E, Tlahuextl M, Lechuga-Islas VD, Falcón-León M, Tlahuext H, Tapia-Benavides AR. Selective Synthesis and Structural Study of Amino Amide Trichlorozincates. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Avila-Montiel C, Tlahuext H, Ariza A, Godoy-Alcántar C, Tapia-Benavides AR, Tlahuextl M. Indium coordination compounds derived from amino amides. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Hugo Tlahuext
- Universidad Autonoma del Estado de Morelos Centro de Investigaciones Químicas MEXICO
| | - Armando Ariza
- Centro de Investigacion y de Estudios Avanzados del IPN: Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional Chemistry Department MEXICO
| | | | | | - Margarita Tlahuextl
- Universidad Autonoma del Estado de Hidalgo Centro de Investigaciones Quimicas Carretera Pachuca-Tulancingo km 4.5 42184 Mineral de la Reforma MEXICO
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Islas‐Trejo E, Avila‐Montiel C, Tlahuext H, Lechuga‐Islas VD, Tapia‐Benavides AR, Tlahuextl M. The Effects of pH on the Supramolecular Structure of Amino Amides. ChemistrySelect 2021. [DOI: 10.1002/slct.202100579] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Eltonh Islas‐Trejo
- Chemistry Department Universidad Autónoma del Estado de Hidalgo Pachuca-Tulancingo, 4.5, M de la Reforma Hgo 42184 México
| | - Concepción Avila‐Montiel
- Chemistry Department Universidad Autónoma del Estado de Hidalgo Pachuca-Tulancingo, 4.5, M de la Reforma Hgo 42184 México
| | - Hugo Tlahuext
- Centro de Investigaciones Químicas Universidad Autónoma del Estado de Morelos Avenida Universidad 1001 Cuernavaca Mor 62100 México
| | - Víctor D. Lechuga‐Islas
- Chemistry Department Universidad Autónoma del Estado de Hidalgo Pachuca-Tulancingo, 4.5, M de la Reforma Hgo 42184 México
| | - Antonio R. Tapia‐Benavides
- Chemistry Department Universidad Autónoma del Estado de Hidalgo Pachuca-Tulancingo, 4.5, M de la Reforma Hgo 42184 México
| | - Margarita Tlahuextl
- Chemistry Department Universidad Autónoma del Estado de Hidalgo Pachuca-Tulancingo, 4.5, M de la Reforma Hgo 42184 México
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