| Tuning the valence of the cerium center in (Na)phthalocyaninato and porphyrinato cerium double-deckers by changing the nature of the tetrapyrrole ligands |
| Bian, YZ; Jiang, JZ; Tao Y(陶冶) ; Tao, Y; Choi, MTM; Li, RJ; Ng, ACH; Zhu, PH; Pan, N; Sun, X; Arnold, DP; Zhou, ZY; Li, HW; Mak, TCW; Ng, DKP
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| 2003
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| 发表期刊 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
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| 卷号 | 125期号:40页码:12257-12267 |
| 通讯作者 | Shandong Univ, Dept Chem, Jinan 250100, Peoples R China
; Chinese Acad Sci, Lab Synchrotron Radiat, Inst High Energy Phys, Beijing 100039, Peoples R China
; Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China
; Queensland Univ Technol, Sch Phys & Chem Sci, Synthesis & Mol Recognit Program, Brisbane, Qld 4001, Australia
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| 摘要 | A series of 7 cerium double-decker complexes with various tetrapyrrole ligands including porphyrinates, phthalocyaninates, and 2,3-naphthalocyaninates have been prepared by previously described methodologies and characterized with elemental analysis and a range of spectroscopic methods. The molecular structures of two heteroleptic [(na)phthalocyaninato](porphyrinato) complexes have also been determined by X-ray diffraction analysis which exhibit a slightly distorted square antiprismatic geometry with two domed ligands. Having a range of tetrapyrrole ligands with very different electronic properties, these compounds have been systematically investigated for the effects of ligands on the valence of the cerium center. On the basis of the spectroscopic (UV-vis, near-IR, IR, and Raman), electrochemical, and structural data of these compounds and compared with those of the other rare earth(III) counterparts reported earlier, it has been found that the cerium center adopts an intermediate valence in these complexes. It assumes a virtually trivalent state in cerium bis(tetra-tert-butylnaphthalocyaninate) as a result of the two electron rich naphthalocyaninato ligands, which facilitate the delocalization of electron from the ligands to the metal center. For the rest of the cerium double-deckers, the cerium center is predominantly tetravalent. The valences (3.59-3.68) have been quantified according to their L(III)-edge X-ray absorption near-edge structure (XANES) profiles. |
| 文章类型 | Article
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| 学科领域 | Chemistry
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| 研究领域[WOS] | Chemistry
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| DOI | 10.1021/ja036017+
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| URL | 查看原文
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| 语种 | 英语
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| WOS类目 | Chemistry, Multidisciplinary
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| WOS记录号 | WOS:000185784700042
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.ihep.ac.cn/handle/311005/240186
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| 专题 | 多学科研究中心
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| 作者单位 | 中国科学院高能物理研究所
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推荐引用方式
GB/T 7714 |
Bian, YZ,Jiang, JZ,Tao Y,et al. Tuning the valence of the cerium center in (Na)phthalocyaninato and porphyrinato cerium double-deckers by changing the nature of the tetrapyrrole ligands[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2003,125(40):12257-12267.
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| APA |
Bian, YZ.,Jiang, JZ.,陶冶.,Tao, Y.,Choi, MTM.,...&Ng, DKP.(2003).Tuning the valence of the cerium center in (Na)phthalocyaninato and porphyrinato cerium double-deckers by changing the nature of the tetrapyrrole ligands.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,125(40),12257-12267.
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| MLA |
Bian, YZ,et al."Tuning the valence of the cerium center in (Na)phthalocyaninato and porphyrinato cerium double-deckers by changing the nature of the tetrapyrrole ligands".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 125.40(2003):12257-12267.
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