Carbohydrate chelation in neutral aqueous solution: the threo-tetritolato-Pd(4) butterfly motif.
Carbohydrate chelation in neutral aqueous solution: the threo-tetritolato-Pd(4) butterfly motif.
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中性水溶液中的碳水化合物螯合:苏式四糖醇-Pd(4)蝴蝶基序
DOI:
10.1002/chem.201100979
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
P. Klüfers
中科院分区:
文献类型:
--
作者:
T. Allscher;P. Klüfers
Alditols (“sugar alcohols”, “glycitols”) form palladium(II) complexes in neutral aqueous solution if they can provide the threitol partial structure. This requirement excludes erythritol, ribitol, and allitol when applied to the common tetritols, pentitols, and hexitols. The remaining alditols are able to arrange theirthreo‐tetraol‐O4pattern to an almost planar rhomb, to which four PdIIN2(N2=bidentate nitrogen ligand) centres bind in a butterfly‐shaped Pd4motif. Bridging is the exclusive bonding mode of the four alkoxido donors. In contrast to the butterfly complexes, all alditols are able to form a species at a pH intermediate between neutrality and the stronger alkaline conditions of non‐bridging diolato‐palladium(II) binding, namely, the μ‐triolato bonding mode. A Pd2(μ‐triolato) unit shows the middle O atom of a propanetriolato fragment as a bridging ligator, with the lateral O atoms binding in the terminal mode.
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作者:
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影响因子:
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作者:
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通讯作者:
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作者:
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DOI:
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发表时间:
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期刊:
Chemistry, an Asian journal
影响因子:
--
作者:
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通讯作者:
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