The invention relates to cationic complexes made up of a lanthanide ion Ln3+ and a ligand of formula (I):
with X, Y and R1 as defined in claim 1, and to the salts thereof with an anion, the solvates and hydrates thereof;
with the exception of cationic complexes made up of a lanthanide ion Ln3+ and a ligand of one of formulae (I.1) or (I.4) as defined in claim 1, and the salts, solvates and hydrates thereof. The invention also relates to the use of such a complex or of a cationic complex made up of a lanthanide ion Ln3+ and a ligand of formula (I.1) or (I.4) as defined in claim 1, or of one of the salts thereof with an anion, the solvates or hydrates thereof, as an aid to the crystallisation of a biological macromolecule, as well as to crystallisation methods and methods for analysing or determining the structure of a biological macromolecule.
本发明涉及由
镧系离子 Ln3+ 和式 (I)
配体组成的阳离子配合物:
X、Y 和 R1 如权利要求 1 所定义的阳离子配合物,以及它们与阴离子的盐类、它们的溶液和
水合物;
由权利要求 1 所定义的
镧系离子 Ln3+ 和式 (I.1) 或 (I.4) 之一的
配体组成的阳离子络合物及其盐类、溶液和
水合物除外。本发明还涉及这种络合物或由权利要求 1 所定义的
镧系离子 Ln3+ 和式 (I.1) 或 (I.4)
配体组成的阳离子络合物,或其与阴离子的盐类之一,其溶液或
水合物作为
生物大分子结晶的辅助剂的用途,以及结晶方法和分析或确定
生物大分子结构的方法。