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Li C, Campillo-Alvarado G, Swenson DC, MacGillivray LR. Photoreactive salt cocrystal: N+–H⋯N hydrogen bond and cation–π interactions support a cascade-like photodimerization of a 4-stilbazole. CrystEngComm 2021. [DOI: 10.1039/d0ce01885f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen bonds (i.e., N+–H⋯N) in combination with cation⋯π interactions enable a cascade-like [2 + 2] photodimerization of 4-stilbazole in a salt cocrystal.
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Affiliation(s)
- Changan Li
- Department of Chemistry
- University of Iowa
- Iowa City
- USA
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2
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Hanf S, Grell T, Waters JE, García-Rodríguez R, Hey-Hawkins E, Wright DS. Facile synthesis of a nickel(0) phosphine complex at ambient temperature. Chem Commun (Camb) 2020; 56:7893-7896. [DOI: 10.1039/d0cc02142c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of the bis(methoxy)-2-pyridyl-phosphine (MeO)2P(2-py) with [Ni(MeCN)6](BF4)2 leads to the unexpected, single-step reduction of NiII and the formation of a tetrahedral nickel(0) complex.
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Affiliation(s)
- Schirin Hanf
- Chemistry Department
- Cambridge University
- Cambridge
- UK
| | - Toni Grell
- Institute of Inorganic Chemistry
- Faculty of Chemistry and Mineralogy
- Leipzig University
- 04103 Leipzig
- Germany
| | | | - Raúl García-Rodríguez
- GIR MIOMeT-IU Cinquima-Química Inorgánica Facultad de Ciencias
- Universidad de Valladolid
- Campus Miguel
- 47011 Valladolid
- Spain
| | - Evamarie Hey-Hawkins
- Institute of Inorganic Chemistry
- Faculty of Chemistry and Mineralogy
- Leipzig University
- 04103 Leipzig
- Germany
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3
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Tabatabaei R, Dehghanpour S, Simpson J, Lipkowski J. Self-assembly of chelating, bridging N, N, N donor ligands and Cu(I), Cu(II), Cd(II), Hg(II): Molecular box versus coordination polymer. Polyhedron 2015. [DOI: 10.1016/j.poly.2014.12.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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4
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Affiliation(s)
- Sebastiaan B. Hakkert
- Department of Chemistry and Molecular Biology; University of Gothenburg; Gothenburg Sweden
| | - Máté Erdélyi
- Department of Chemistry and Molecular Biology; University of Gothenburg; Gothenburg Sweden
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5
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Meenatchi V, Muthu K, Rajasekar M, Meenakshisundaram SP. Synthesis, structure, spectral, thermal and first-order molecular hyperpolarizability of 4-benzoylpyridine isonicotinyl hydrazone monohydrate single crystals. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 124:423-428. [PMID: 24508881 DOI: 10.1016/j.saa.2014.01.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 12/16/2013] [Accepted: 01/10/2014] [Indexed: 06/03/2023]
Abstract
Single crystals of 4-benzoylpyridine isonicotinyl hydrazone monohydrate were grown by slow evaporation solution growth technique from ethanol at room temperature. It belongs to triclinic system with space group P1¯ and the cell parameters are, a=8.9250(2) Å, b=9.1540(2) Å, c=10.87500(10) Å and V=797.88(3) Å(3). Powder XRD closely resembles with that of simulated pattern from single crystal XRD. The characteristic functional groups present in the molecule are confirmed by FT-IR and FT-Raman analyses. The crystal is transparent in the visible region having a lower optical cut-off at ∼420 nm and the band gap energies are estimated by the application of Kubelka-Munk algorithm. Thermal analysis by TG/DTA indicates the stability of the material. The scanning electron microscopy studies reveal the surface morphology of the as-grown crystal. Mass spectrometry provides information pertaining to the structure and molecular weight of the compound. Theoretical calculations were performed using Hartree-Fock method with 6-31G(d,p) as the basis set for to derive the optimized geometry, dipole moment and first-order molecular hyperpolarizality (β) values.
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Affiliation(s)
- V Meenatchi
- Department of Chemistry, Annamalai University, Annamalainagar 608 002, Tamil Nadu, India
| | - K Muthu
- Department of Chemistry, Annamalai University, Annamalainagar 608 002, Tamil Nadu, India
| | - M Rajasekar
- Department of Chemistry, Annamalai University, Annamalainagar 608 002, Tamil Nadu, India
| | - S P Meenakshisundaram
- Department of Chemistry, Annamalai University, Annamalainagar 608 002, Tamil Nadu, India.
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Shah HH, Al-Balushi RA, Al-Suti MK, Khan MS, Marken F, Sudlow AL, Kociok-Köhn G, Woodall CH, Raithby PR, Molloy KC. New di-ferrocenyl-ethynylpyridinyl triphenylphosphine copper halide complexes and related di-ferricenyl electro-crystallized materials. Dalton Trans 2014; 43:9497-507. [PMID: 24824939 DOI: 10.1039/c3dt52914b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Three di-ferrocenyl-ethynylpyridinyl copper complexes have been synthesised and CV measurements made.
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Affiliation(s)
- Hakikulla H. Shah
- Department of Chemistry
- Sultan Qaboos University
- Al-Khoudh 123, Sultanate of Oman
| | - Rayya A. Al-Balushi
- Department of Chemistry
- Sultan Qaboos University
- Al-Khoudh 123, Sultanate of Oman
| | - Mohammed K. Al-Suti
- Department of Chemistry
- Sultan Qaboos University
- Al-Khoudh 123, Sultanate of Oman
| | - Muhammad S. Khan
- Department of Chemistry
- Sultan Qaboos University
- Al-Khoudh 123, Sultanate of Oman
| | - Frank Marken
- Department of Chemistry
- University of Bath
- Bath, UK
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7
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Shah HH, Al-Balushi RA, Al-Suti MK, Khan MS, Woodall CH, Sudlow AL, Raithby PR, Kociok-Köhn G, Molloy KC, Marken F. New Multi-Ferrocenyl- and Multi-Ferricenyl- Materials via Coordination-Driven Self-Assembly and via Charge-Driven Electro-Crystallization. Inorg Chem 2013; 52:12012-22. [PMID: 24107148 DOI: 10.1021/ic401803p] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hakikulla H. Shah
- Department of Chemistry, Sultan Qaboos University, P.O. Box 36, Al-Khodh 123, Sultanate of Oman
| | - Rayya A. Al-Balushi
- Department of Chemistry, Sultan Qaboos University, P.O. Box 36, Al-Khodh 123, Sultanate of Oman
| | - Mohammed K. Al-Suti
- Department of Chemistry, Sultan Qaboos University, P.O. Box 36, Al-Khodh 123, Sultanate of Oman
| | - Muhammad S. Khan
- Department of Chemistry, Sultan Qaboos University, P.O. Box 36, Al-Khodh 123, Sultanate of Oman
| | | | - Anna L. Sudlow
- Department of Chemistry, University of Bath, Bath, BA2 7AY, U.K
| | - Paul R. Raithby
- Department of Chemistry, University of Bath, Bath, BA2 7AY, U.K
| | | | | | - Frank Marken
- Department of Chemistry, University of Bath, Bath, BA2 7AY, U.K
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Myśliborski R, Rachlewicz K, Latos-Grażyński L. Low-spin organoiron(III) N-confused pyriporphyrin. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424607000229] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Oxidation of ( PyP H) Fe II Br , an iron(II) complex of 6,11,16,21-tetraaryl-3-aza-m-benziporphyrin ( N -confused pyriporphyrin, ( PyP H) H ) has been followed, in the presence of pyridine, by 1 H and 2 H NMR spectroscopy. One-electron oxidation with dioxygen, accompanied by deprotonation of a C (22) H fragment and formation of a Fe - C (22) bond, produced a low-spin, six-coordinate iron(III) complex [( PyP ) Fe III( py )2]+ as confirmed by combination of 1 H NMR, EPR and structural data. The characteristic patterns of 1 H NMR pyrrole and meso-aryl resonances resemble features assigned to the less common, low-spin ground electronic state (( d xz d yz )4( d xy )1) of iron(III) regular porphyrins. A conformational rearrangement process has been detected which involves two structures differentiated by macrocyclic ruffling. The structure of { H [( PyP ) Fe III( py )2]2}( Fe III Br 4)3· CH 2 Cl 2 has been determined by X-ray crystallography. The cationic complex involves a six-coordinate iron atom bound to the N -confused pyriporphyrin through its three nitrogens ( Fe - N (23) = 1.924(7), Fe - N (24) = 1.979(7), Fe - N (25) = 1.9343(7) Å) and the pirydyl trigonal C (22) atom ( Fe (1)- C (22) = 1.972(10) Å). The porphyrin is strongly ruffled, defining two deep grooves along C meso - C meso axes at right angles to each other. Two axial pyridine ligands are located in the prearranged equatorial ligand grooves. The iron lies in the N 3 C plane of the macrocycle defined by coordinating nitrogen and carbon atoms. In the solid, pairs of molecules are positioned along the line defined by Fe (1)- C (22) and Fe (2)- C (91) bonds. The structure demonstrates the head-to-head arrangement of two [( PyP ) Fe III( py )2]+ subunits revealing the adjacency of the two perimeter nitrogen atoms (the N (3)⋯ N (72) distance = 2.587(10) Å) linked by the N ⋯ H ⋯ N hydrogen bond.
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Affiliation(s)
- Radomir Myśliborski
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie St. Wrocław 50 383, Poland
| | - Krystyna Rachlewicz
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie St. Wrocław 50 383, Poland
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Perumalla SR, Sun CC. Design and synthesis of solid state structures with conjugate acid–base pair interactions. CrystEngComm 2012. [DOI: 10.1039/c2ce25193k] [Citation(s) in RCA: 28] [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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Gruber T, Eissmann F, Weber E, Schüürmann G. 1-Methyl-4-(4-nitro-benzo-yl)pyridinium perchlorate. Acta Crystallogr Sect E Struct Rep Online 2011; 67:o2542-3. [PMID: 22059070 PMCID: PMC3200796 DOI: 10.1107/s1600536811034945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Accepted: 08/25/2011] [Indexed: 12/01/2022]
Abstract
In the main molecule of the title compound, C13H11N2O3+·ClO4−, the two aromatic rings are twisted by 56.19 (3)° relative to each other and the nitro group is not coplanar with the benzene ring [36.43 (4)°]. The crystal packing is dominated by infinite aromatic stacks in the a-axis direction. These are formed by the benzene units of the molecule featuring an alternating arrangement, which explains the two different distances of 3.3860 (4) and 3.4907 (4) Å for the aromatic units (these are the perpendicular distances of the centroid of one aromatic ring on the mean plane of the other other aromatic ring). Adjacent stacks are connected by π–π stacking between two pyridinium units [3.5949 (4) Å] and weak C—H⋯O interactions. The perchlorate anions are accomodated in the lattice voids connected to the cation via weak C—H⋯O contacts between the O atoms of the anion and various aromatic as well as methyl H atoms.
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Boyle TJ, Pratt HD, Alam TM, Rodriguez MA, Clem PG. Synthesis and characterization of solvated trifluoroacetate alkaline earth derivatives. Polyhedron 2007. [DOI: 10.1016/j.poly.2007.07.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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