-
Article
Complexes of Rare Earths and Dipicolinato Ions Encapsulated in X- and Y-zeolites: Luminescence Properties
The complexes {Ln(DP)}Z where Ln3+ = La3+ or Eu3+, DP is the dipicolinate ion (2,6)-pyridine dicarboxylate: C5H3N(COO-)2 and Z = one of the faujasite-type X or Y zeolites have been synthesized and investigated by...
-
Article
Binding and Ionophoric Properties of Polythioamide Compounds. Ag(I) and Hg(II) Selectivities
The synthesis of tetrathiolactams and related di- and tetrathioamide compounds is described. The formation constants of their heavy-metal complexes are determined by using the strong UV absorption of the thioa...
-
Article
Binding and Ionophoric Properties of Polyamide Compounds. Lead Selectivity
The extraction and transport properties of macrocyclic dioxa-, dithia- and diazatetralactams are reported along with those of open-chain analogous compounds. The preference of three of them for lead over alkal...
-
Article
Synthesis, complexing properties and molecular modelling of open chain receptors of barbiturates derived from 2,6-diamino pyridine
Three new derivatives of 2,6-diacyldiaminopyridine are reported. NMR shift titrations were performed in CDCl3 with barbiturates. The diamide1 affords a greater complexation energy (−13.00 kJ mol−1) with bemegride...
-
Chapter
Calcium Complexing Ligands Derived from Cystine: Exploratory Work
Two kinds of ligands derived from cystine are presented: macrocyclic dilactones and acyclic tetraester analogues of EGTA and BAPTA.
-
Article
23. Continuous fetal pH monitoring
Die bisher mit der neuen subcutanen pH-Elektrode erzielten Ergebnisse bestätigen die Zuverlässigkeit dieser Methode, was die rein technischen Aspekte betrifft.
-
Article
Action du CCC et du B 995 sur la mise à fleur d'une plante bisannuelle, l'Œnothera biennis
Oenothera biennis L. is a typical biennial plant with an absolute cold requirement for subsequent floral initiation under long-day conditions. Flowering of vernalized Oe. biennis is associated with transition fr...
