Diethylenetriamine - Wikipedia
In coordination chemistry, it serves as a tridentate ligand forming complexes such as Co (dien) (NO 2) 3. [5] Like some related amines, it is used in oil industry for the extraction of acid gas. Like ethylenediamine, DETA can also be used to sensitize nitromethane, making a liquid explosive compound similar to PLX.
Ligands: Definition, Types, and Examples - Chemistry Learner
A ligand is a molecule or ion that can donate a pair of electrons to a central metal atom or ion. The donated electron pair forms coordinate bonds with the metal, forming coordination compounds. Ligands act as Lewis bases (electron pair donors), and the central atom acts as a Lewis acid (electron pair acceptor).
Coordination Complexes and Ligands - Division of Chemical …
Any ion or molecule with a pair of nonbonding electrons can be a ligand. Many ligands are described as monodentate (literally, "one-toothed") because they "bite" the metal in only one place. Typical monodentate ligands are given in the figure below.
A structural study of late transition metal diethylenetriamine ...
2007年4月1日 · The dien ligand adopts facial stereochemistry about the nickel atom and the water molecule is trans to the central N atom of the dien ligand. The overall structure involves an extensively network where the water molecules and chloride ions are involved in hydrogen bonding, as well as relatively long NH⋯Cl interactions.
Tridentate ligand - Wikipedia
A tridentate ligand (or terdentate ligand) is a ligand that has three atoms that can function as donor atoms in a coordination complex. [1] Well-known tridentate ligands include diethylenetriamine with three nitrogen donor atoms, and the iminodiacetate anion which consists of one deprotonated amine nitrogen and a pair of carboxylate groups. [1]
Diethylenetriamine/diamines/copper (II) complexes [Cu(dien…
2017年9月1日 · Diethelenetriamine (dien) and their derivative ligands with tridentate N-donor ligands are suitably placed to form two 5-member-chelate-metal complexes (Al-Noaimi et al., 2014, Mousa et al., 2014).
Functionalised dien ligands of the type (ArNHCH2CH2)2NR [R
2005年10月27日 · The aryl-substituted dien ligand frame has been amenable to functionalisation at the central nitrogen atom allowing access to sterically bulky alkyl- and picolyl-substituted multidentate nitrogen donor ligands; full characterisation of complexes formed from their reactions with iron and cobalt chlorides is reported.
Synthesis, structures and thermal properties of Cu(II) and Ni(II ...
2007年10月26日 · The two independent Cu(II) centers are bridged by the nicotinate ligand through the pyridyl nitrogen atom and one of the carboxylate oxygen atoms, coordination mode II. Each Cu(II) metal center is also coordinated by a tridentate dien ligand. Selected bond distances and angles are listed in Table 2. The Cu(1) center is coordinated by four ...
Synthesis and Properties of the First [Au(dien)(N-heterocycle)]3 ...
2013年12月11日 · The solution properties of [Au(dien)(9-EtG)](NO3)3 show three pH-dependent species over a broad pH range. The use of N-heterocycle ligands modulates the reduction potential of gold(III) and the aci...
Synthesis, crystal structure, spectroscopic and magnetic properties …
2007年1月25日 · A new complex, [Cu (dien) 2] [Ni (CN) 4] (1) [dien = diethylenetriamine] has been obtained by the reaction of Cu (ClO 4) 2 ·6H 2 O, diethylenetriamine and K 2 [Ni (CN) 4] in water, and has been characterized spectroscopically. The crystal …
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