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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Lee, Gene-hsiang Chen, Chun-hsien Peng, Shie-ming Hsu, Chan-hsiang Liu, Isiah Po-chun Cheng, Ming-chuan |
| Description | Author Affiliation: Cheng MC ( Department of Chemistry, National Taiwan University, Taipei, Taiwan.) |
| Abstract | The synthesis, crystal structure, magnetic properties, and single-molecule conductance of two new trinuclear metal string complexes, $[Ni_{3}(dzp)_{4}(NCS)_{2}]$ (2) and $[Co_{3}(dzp)_{4}(NCS)_{2}]$ (3), containing the rigid Hdzp ligand (1, 1,9-diazaphenoxazine ) are reported. X-ray structural analyses show that compounds 2 and 3 exhibit smaller torsion angles and longer metal–metal distances than those exhibited by the corresponding $dpa^{−}$ analogues $(dpa^{−}$ = dipyridylamido anion) due to the rigidity of Hdzp ligands . The longer metal–metal distance observed for 2 and 3 results in variations in their magnetic properties. The exchange interaction (J = −160 $cm^{−1})$ between two high spin (HS) Ni(II) ions in 2 decreases slightly in comparison with those of trinickel $dpa^{−}$ analogues. The doublet–quartet gap of 3 is smaller than that of $[Co_{3}(dpa)_{4}(NCS)_{2}]$ (4), which causes compound 3 to show spin-crossover behavior even at low temperature. |
| ISSN | 14779226 |
| Issue Number | 11 |
| Journal | Dalton Trans. |
| Volume Number | 41 |
| e-ISSN | 13645447 |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Publisher Date | 2012-03-21 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | Subscribed |
| Subject Keyword | Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Inorganic Chemistry |
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