Uncharged water-soluble metal-bis-porphyrins like molecular tweezers for amino acids

被引：13

作者：

Scamporrino, Emilio

Mineo, Placido

Dattilo, Sandro

Vitalini, Daniele

Spina, Emanuela

机构：

[1] Univ Catania, Dipartimento Sci Chim, I-95125 Catania, Italy

[2] CNR, Ist Chim & Tecnol Polimeri, I-95125 Catania, Italy

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2007年 / 28卷 / 15期

关键词：

aminoacids; matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS); porphyrin-tweezers; sensors; water-soluble polymers;

D O I：

10.1002/marc.200700234

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Some new water-soluble bis-porphyrins, constituted of two porphyrin units spaced by means of aliphatic bridges of different lengths, were synthesized and characterized by MALDI-TOF mass spectrometry, H-1 NMR and UV-vis spectroscopy. The hydrosolubility of these uncharged compounds was guaranteed from the presence of six long PEG chains bound on the peripheral positions of the two porphyrins. Cobalt and zinc derivatives were also prepared. In the case of Co-bis-porphyrin, the appearance of induced circular dichroism (ICD) signals in water solution confirmed the formation of stable complexes with some amino acids, in which the bis-porphyrin behaves like molecular tweezers.

引用

页码：1546 / 1552

页数：7

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