Crystal structure of a mononuclear copper(II) complex with 2-methoxy-N,N-bis(quinolin-2-ylmethyl)ethylamine (DQMEA)
Structural characterization of the compound [Cu(C2H3N)(C23H23N3O)](ClO4)2] or [Cu(C2H3N)(DQMEA)](ClO4)2] [DQMEA = 2-methoxy-N,N-bis(quinolin-2-ylmethyl)ethylamine] {systematic name: (acetonitrile)[2-methoxy-N,N-bis(quinolin-2-ylmethyl)ethylamine]copper(II) diperchlorate} by single-crystal X-ray diff...
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| Format: | Article |
| Language: | English |
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International Union of Crystallography
2018-08-01
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| Series: | Acta Crystallographica Section E: Crystallographic Communications |
| Subjects: | |
| Online Access: | http://scripts.iucr.org/cgi-bin/paper?S2056989018010319 |
| _version_ | 1819003027193856000 |
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| author | Steven T. Frey Jason Li Manpreet Kaur Jerry P. Jasinski |
| author_facet | Steven T. Frey Jason Li Manpreet Kaur Jerry P. Jasinski |
| author_sort | Steven T. Frey |
| collection | DOAJ |
| description | Structural characterization of the compound [Cu(C2H3N)(C23H23N3O)](ClO4)2] or [Cu(C2H3N)(DQMEA)](ClO4)2] [DQMEA = 2-methoxy-N,N-bis(quinolin-2-ylmethyl)ethylamine] {systematic name: (acetonitrile)[2-methoxy-N,N-bis(quinolin-2-ylmethyl)ethylamine]copper(II) diperchlorate} by single-crystal X-ray diffraction reveals a complex cation with a tetradentate coordination of the DQMEA ligand along with monodentate coordination of a CH3CN ligand to a single CuII center, with two perchlorate anions providing charge balance. The CuII center has a distorted square-pyramidal geometry in which the nitrogen atoms of the DQMEA and CH3CN ligands occupy the equatorial positions, while the oxygen atom of the DQMEA ligand resides in the axial position with an elongated Cu—O bond. The quinoline ring systems are nearly co-planar in the structure, while the linear CH3CN ligand is tilted significantly below this plane, and the central nitrogen of DQMEA is above it. Within the complex, weak C—H...N hydrogen bonding takes place between the nitrogen of CH3CN and a neighboring quinolyl group. The perchlorate ions are disordered within the structure, but undergo a number of weak intermolecular C—H...O hydrogen-bonding interactions. Additional weak π-stacking interactions between the quinolyl groups of neighboring complexes further stabilize the crystal packing. |
| first_indexed | 2024-12-20T23:14:28Z |
| format | Article |
| id | doaj.art-35981ccfd3404c829d90942680806c19 |
| institution | Directory Open Access Journal |
| issn | 2056-9890 |
| language | English |
| last_indexed | 2024-12-20T23:14:28Z |
| publishDate | 2018-08-01 |
| publisher | International Union of Crystallography |
| record_format | Article |
| series | Acta Crystallographica Section E: Crystallographic Communications |
| spelling | doaj.art-35981ccfd3404c829d90942680806c192022-12-21T19:23:40ZengInternational Union of CrystallographyActa Crystallographica Section E: Crystallographic Communications2056-98902018-08-017481138114110.1107/S2056989018010319tx2007Crystal structure of a mononuclear copper(II) complex with 2-methoxy-N,N-bis(quinolin-2-ylmethyl)ethylamine (DQMEA)Steven T. Frey0Jason Li1Manpreet Kaur2Jerry P. Jasinski3Department of Chemistry, Skidmore College, 815 North Broadway, Saratoga Springs, NY 12866, USADepartment of Chemistry, Skidmore College, 815 North Broadway, Saratoga Springs, NY 12866, USADepartment of Chemistry, Keene State College, 229 Main Street, Keene, NH 03435-2001, USADepartment of Chemistry, Keene State College, 229 Main Street, Keene, NH 03435-2001, USAStructural characterization of the compound [Cu(C2H3N)(C23H23N3O)](ClO4)2] or [Cu(C2H3N)(DQMEA)](ClO4)2] [DQMEA = 2-methoxy-N,N-bis(quinolin-2-ylmethyl)ethylamine] {systematic name: (acetonitrile)[2-methoxy-N,N-bis(quinolin-2-ylmethyl)ethylamine]copper(II) diperchlorate} by single-crystal X-ray diffraction reveals a complex cation with a tetradentate coordination of the DQMEA ligand along with monodentate coordination of a CH3CN ligand to a single CuII center, with two perchlorate anions providing charge balance. The CuII center has a distorted square-pyramidal geometry in which the nitrogen atoms of the DQMEA and CH3CN ligands occupy the equatorial positions, while the oxygen atom of the DQMEA ligand resides in the axial position with an elongated Cu—O bond. The quinoline ring systems are nearly co-planar in the structure, while the linear CH3CN ligand is tilted significantly below this plane, and the central nitrogen of DQMEA is above it. Within the complex, weak C—H...N hydrogen bonding takes place between the nitrogen of CH3CN and a neighboring quinolyl group. The perchlorate ions are disordered within the structure, but undergo a number of weak intermolecular C—H...O hydrogen-bonding interactions. Additional weak π-stacking interactions between the quinolyl groups of neighboring complexes further stabilize the crystal packing.http://scripts.iucr.org/cgi-bin/paper?S2056989018010319crystal structurecopper(II)tripodal ligandJahn–Teller distortion |
| spellingShingle | Steven T. Frey Jason Li Manpreet Kaur Jerry P. Jasinski Crystal structure of a mononuclear copper(II) complex with 2-methoxy-N,N-bis(quinolin-2-ylmethyl)ethylamine (DQMEA) Acta Crystallographica Section E: Crystallographic Communications crystal structure copper(II) tripodal ligand Jahn–Teller distortion |
| title | Crystal structure of a mononuclear copper(II) complex with 2-methoxy-N,N-bis(quinolin-2-ylmethyl)ethylamine (DQMEA) |
| title_full | Crystal structure of a mononuclear copper(II) complex with 2-methoxy-N,N-bis(quinolin-2-ylmethyl)ethylamine (DQMEA) |
| title_fullStr | Crystal structure of a mononuclear copper(II) complex with 2-methoxy-N,N-bis(quinolin-2-ylmethyl)ethylamine (DQMEA) |
| title_full_unstemmed | Crystal structure of a mononuclear copper(II) complex with 2-methoxy-N,N-bis(quinolin-2-ylmethyl)ethylamine (DQMEA) |
| title_short | Crystal structure of a mononuclear copper(II) complex with 2-methoxy-N,N-bis(quinolin-2-ylmethyl)ethylamine (DQMEA) |
| title_sort | crystal structure of a mononuclear copper ii complex with 2 methoxy n n bis quinolin 2 ylmethyl ethylamine dqmea |
| topic | crystal structure copper(II) tripodal ligand Jahn–Teller distortion |
| url | http://scripts.iucr.org/cgi-bin/paper?S2056989018010319 |
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