Assembly of zinc metallacrowns with an u-amino hydroxamic acid ligand

In the assembly of metallacrowns for molecular recognition, luminescence, and molecular magnetism applications, substituting the ring ion can have profound effects on the structure, stability, and physical properties of the inorganic macrocycle. The assembly of Zn（ll） metallacrowns with an ,~-amino...

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Published in中国化学快报：英文版 no. 4; pp. 444 - 448
Main Author Joseph Jankolovits Jeff w. Kampf Vincent L. Pecoraro
Format Journal Article
LanguageEnglish
Published 2015
Subjects
C2对称性
Ni（Ⅱ）
大环化合物
异羟肟酸
氨基酸
组装行为
配体
锌（Ⅱ）
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Summary:In the assembly of metallacrowns for molecular recognition, luminescence, and molecular magnetism applications, substituting the ring ion can have profound effects on the structure, stability, and physical properties of the inorganic macrocycle. The assembly of Zn（ll） metallacrowns with an ,~-amino hydroxamic acid ligand （pheHA） was investigated studied metallacrowns containing Cu（lI） and Ni（I1）. to compare the assembly behavior with the well Electrospray ionization mass spectrometry reveals that the benchmark species Zns（pheHA）42＋ and LnZns（pheHA）s3. assemble in pyridine, which is consistent with the behavior of Cu（II） and Ni（ll）. A LnZn4（pheHA）43. species is also observed in a 1：1 DMF-pyridine mixture. An unprecedented La（III）[16-MCznul）.pn~HA,HpheHA-6]s＋ complex was crystallo- graphically characterized that possesses unusual C2 symmetry. These results provide insights into the design of functional metallacrowns through ring ion substitution.
Bibliography:11-2710/O6
In the assembly of metallacrowns for molecular recognition, luminescence, and molecular magnetism applications, substituting the ring ion can have profound effects on the structure, stability, and physical properties of the inorganic macrocycle. The assembly of Zn（ll） metallacrowns with an ,~-amino hydroxamic acid ligand （pheHA） was investigated studied metallacrowns containing Cu（lI） and Ni（I1）. to compare the assembly behavior with the well Electrospray ionization mass spectrometry reveals that the benchmark species Zns（pheHA）42＋ and LnZns（pheHA）s3. assemble in pyridine, which is consistent with the behavior of Cu（II） and Ni（ll）. A LnZn4（pheHA）43. species is also observed in a 1：1 DMF-pyridine mixture. An unprecedented La（III）[16-MCznul）.pn~HA,HpheHA-6]s＋ complex was crystallo- graphically characterized that possesses unusual C2 symmetry. These results provide insights into the design of functional metallacrowns through ring ion substitution.
MetallacrownSelf-assemblySupramolecular chemistryLanthanide5Zinc
ISSN:1001-8417
1878-5964