Methylierung cyclischer Aminosäuren. II. Synthese der N-Methyl-hexahydro-picolin-säure und der N-Methyl-hexahydro-nicotinsäure
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Synthese und Untersuchung der Lanthanoidoxidnitrate
The lanthanide oxide nitrates LnONO3 with Ln = Pr, Nd, and Sm-Yb were synthesised by thermal decomposition of hydrated lanthanide nitrates. The compounds were refined isotypically to YONO3 in the tetragonal space group P4/nmm and the structure is closely related to the PbFCl-type. Because of the orientational disorder of NO3− in this structure refinement a possible superstructure is discussed. ...
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In the mol-ecule of the title compound, [ZnCl(2)(C(11)H(10)N(2))], the Zn(II) atom is four-coordinated in a distorted tetra-hedral configuration by two N atoms from the 6-methyl-2,2'-bipyridine ligand and by two Cl atoms. There are π-π contacts between the pyridine ring and the five-membered ring, and also between the pyridine rings, [centroid-centroid distances = 3.685 (3) and 3.757 (3) Å, res...
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ژورنال
عنوان ژورنال: Berichte der deutschen chemischen Gesellschaft
سال: 1917
ISSN: 0365-9496,1099-0682
DOI: 10.1002/cber.19170500168