CCCCC pentadentate chelates with planar Möbius aromaticity and unique properties.
CCCCC pentadentate chelates with planar Möbius aromaticity and unique properties.
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CCCCC 五齿螯合物具有平面莫比乌斯芳香性和独特的性质
DOI:
10.1126/sciadv.1601031
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发表时间:
2016-08
期刊:
影响因子:
13.6
通讯作者:
Xia H
中科院分区:
文献类型:
--
作者:
Zhu C;Yang C;Wang Y;Lin G;Yang Y;Wang X;Zhu J;Chen X;Lu X;Liu G;Xia H
Planar Möbius aromatic metallacycles show NIR absorption spectrum and the highest carbon coordination number for a metal atom. The coordinating atoms in polydentate chelates are primarily heteroatoms. We present the first examples of pentadentate chelates with all binding atoms of the chelating agent being carbon atoms, denoted as CCCCC chelates. Having up to five metal-carbon bonds in the equatorial plane has not been previously observed in transition metal chemistry. Density functional theory calculations showed that the planar metallacycle has extended Craig-Möbius aromaticity arising from 12-center–12-electron dπ-pπ π-conjugation. These planar chelates have broad absorption in the ultraviolet-visible–near-infrared region and, thus, notable photothermal performance upon irradiation by an 808-nm laser, indicating that these chelates have potential applications in photothermal therapy. The combination of facile synthesis, high stability, and broad absorption of these complexes could make the polydentate carbon chain a novel building block in coordination chemistry.
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影响因子:
13.3
作者:
Liu, Gang;Xie, Jin;Zhang, Fan;Wang, Zhiyong;Luo, Kui;Zhu, Lei;Quan, Qimeng;Niu, Gang;Lee, Seulki;Ai, Hua;Chen, Xiaoyuan
通讯作者:
Chen, Xiaoyuan
影响因子:
4.3
作者:
Mauksch, Michael;Tsogoeva, Svetlana B.
通讯作者:
Tsogoeva, Svetlana B.
影响因子:
4.4
作者:
HAY, PJ;WADT, WR
通讯作者:
WADT, WR
影响因子:
64.8
作者:
CRAIG, DP;PADDOCK, NL
通讯作者:
PADDOCK, NL
影响因子:
2.9
作者:
Herges, R;Geuenich, D
通讯作者:
Geuenich, D