Structural diversity in the coordination of amidines and guanidines to monovalent metal halides

Dalton Transactions : an International Journal of Inorganic Chemistry
Sarah H OakleyPeter B Hitchcock

Abstract

A series of structurally characterised, monovalent metal-halide complexes incorporating neutral amidine and guanidine ligands is reported. N,N'-diphenylbenzamidine reacted with copper(I) chloride to afford the bis-ligand complex [CuCl(PhC[NPh][NHPh])2]2 (1), that exists as a chlorine bridged dimer in the solid state, with a non-symmetrical distribution of NH...Cl interactions within the 'Cu2Cl2' metallacycle. In contrast, only one equivalent of the guanidine, Me2NC[NiPr][NHiPr] (2), is coordinated in the copper(I) iodide complex [CuI(Me2NC[NiPr][NHiPr])]2 (3), which was also isolated as the dimer with bridging halide atoms. The molecular structure of the bicyclic guanidine, 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-alpha]pyrimidine (hppH), is reported, revealing a hydrogen bridged dimer with extensive delocalisation throughout the ligand framework. Coordination of hppH to lithium chloride afforded the dimeric bis-ligand complex [LiCl(hppH)2]2 (4) in which each hppH molecule interacts with a different chlorine atom of the central 'Li2Cl2' core of the molecule via NH...Cl hydrogen bonding. In contrast the 2:1 ligand to metal complex is formed with silver(I) chloride to afford AgCl(hppH)2 (5), a unique example of a monomeric, three-co...Continue Reading

Citations

Dec 16, 2011·Inorganic Chemistry·Alexander M WillcocksAndrew L Johnson
Dec 24, 2013·Inorganic Chemistry·Dhirendra YadavSelvarajan Nagendran
Jun 22, 2005·Chemical Communications : Chem Comm·Martyn P Coles, Peter B Hitchcock
Oct 31, 2009·Journal of the American Chemical Society·Martyn P ColesDavid C Apperley
Aug 24, 2013·The Journal of Physical Chemistry. a·Markus J LeitlHartmut Yersin
Dec 23, 2004·Chemistry : a European Journal·María García-CastroCarlos Yélamos
Apr 2, 2010·Angewandte Chemie·Claude VilliersMichel Ephritikhine
Aug 12, 2005·Dalton Transactions : an International Journal of Inorganic Chemistry·Natalie E MansfieldPeter B Hitchcock
Feb 14, 2006·Dalton Transactions : an International Journal of Inorganic Chemistry·Martyn P Coles
Jan 28, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Majid S KhalafPeter B Hitchcock
Jan 10, 2012·Chemical Society Reviews·Tom R M Rauws, Bert U W Maes
Apr 11, 2020·Beilstein Journal of Organic Chemistry·Faïma LazregCatherine S J Cazin
Oct 21, 2016·Chemistry : a European Journal·Anup K AdhikariEvamarie Hey-Hawkins
Dec 22, 2009·Chemical Communications : Chem Comm·Gina M ChiarellaJohn P Fackler
Mar 7, 2018·Inorganic Chemistry·Anup K AdhikariEvamarie Hey-Hawkins
Aug 3, 2004·Inorganic Chemistry·Sarah H OakleyPeter B Hitchcock
Oct 19, 2006·Journal of the American Chemical Society·Natalie E MansfieldPeter B Hitchcock
Nov 24, 2004·Inorganic Chemistry·Sarah H OakleyPeter B Hitchcock

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.