Synthesis of free and ligated 1,2-thiaphosphetanes – expanding the pool of strained P-ligands

2019 ◽  
Vol 55 (11) ◽  
pp. 1615-1618 ◽  
Author(s):  
Andreas Wolfgang Kyri ◽  
Florian Gleim ◽  
David Becker ◽  
Gregor Schnakenburg ◽  
Arturo Espinosa Ferao ◽  
...  
Keyword(s):  
Metal Complex ◽  
Coordination Sphere ◽  
Free Ligand ◽  
First Time ◽  
P Ligands

The 1,2-thiaphosphetane heterocycle could be synthesized for the first time in the coordination sphere of a metal complex (I) from which the free ligand (II) could be obtained, too.

scholarly journals Control of cerium oxidation state through metal complex secondary structures

2015 ◽  
Vol 6 (12) ◽  
pp. 6925-6934 ◽  
Author(s):  
Jessica R. Levin ◽  
Walter L. Dorfner ◽  
Patrick J. Carroll ◽  
Eric J. Schelter
Keyword(s):  
Alkali Metal ◽  
Metal Complex ◽  
Oxidation State ◽  
Coordination Sphere ◽  
Electronic Structures ◽  
Secondary Structures ◽  
Secondary Coordination Sphere

A series of alkali metal cerium diphenylhydrazido complexes, Mx(py)y[Ce(PhNNPh)4], M = Li, Na, and K, x = 4 (Li and Na) or 5 (K), and y = 4 (Li), 8 (Na), or 7 (K), were synthesized to probe how a secondary coordination sphere would modulate electronic structures at a cerium cation.

scholarly journals Ba2ZnGe2S6O: Ein neues Oxidsulfid mit Tetraedergerüststruktur/On Ba2ZnGe2S6O. A New Oxide Sulfide with Tetrahedral Framework Structure

1980 ◽  
Vol 35 (6) ◽  
pp. 672-675 ◽  
Author(s):  
Chr. L. Teske
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Coordination Sphere ◽  
Framework Structure ◽  
Tetrahedral Framework ◽  
Space Group ◽  
X Ray ◽  
Lattice Constants ◽  
First Time ◽  
Ray Methods

Abstract Ba2ZnGe2S6O was prepared for the first time and the crystal structure determined by using single crystal X-ray methods. The space group is D32d-P4̄21m, tetragonal (No. 113). Lattice constants: a = 963.59 ± 0.22; c = 645.06 ± 0.25 pm. The tetrahedral framework structure is described and discussed. Zn is linked only to sulfur. The oxygen belongs to the coordination sphere of Ge and Ba.

Novel isomorphism of two hexagonal non-centrosymmetric hybrid crystals of M(en)3Ag2I4 (M = transition metal Mn2+ or main-group metal Mg2+; en = ethylenediamine)

CrystEngComm ◽  
2018 ◽  
Vol 20 (3) ◽  
pp. 356-361 ◽  
Author(s):  
Xin Chen ◽  
Zhi-Yuan Yao ◽  
Chen Xue ◽  
Zhu-Xi Yang ◽  
Jian-Lan Liu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complex ◽  
Metal Complexes ◽  
Crystal Structures ◽  
Main Group ◽  
Group Metal ◽  
Main Group Metal ◽  
Hybrid Crystals ◽  
First Time

For the first time, a main-group metal complex is used as a template for the formation of hybrid crystal structures and isomorphic hybrid crystals are obtained using transition and main-group metal complexes.

scholarly journals To cage or to be caged? The cytotoxic species in ruthenium-based photoactivated chemotherapy is not always the metal

2017 ◽  
Vol 53 (50) ◽  
pp. 6768-6771 ◽  
Author(s):  
Jordi-Amat Cuello-Garibo ◽  
Michael S. Meijer ◽  
Sylvestre Bonnet
Keyword(s):  
Metal Complex ◽  
Free Ligand

In metal-based photoactivated chemotherapy (PACT), two photoproducts are generated by light-triggered photosubstitution of a metal-bound ligand: the free ligand itself and an aquated metal complex.

scholarly journals Study of antihypoxic activities of metal complex selenium containing substances after their parenteral and enteralintroductions

2012 ◽  
Vol 10 (3) ◽  
pp. 28-34
Author(s):  
Denis Vladimirovich Sosin ◽  
Andrey Viktorovich Yevseyev ◽  
Edgar Andreyevich Parfenov ◽  
Vitaliy Andreyevich Pravdivtsev ◽  
Marina Anatolyevna Yevseyeva ◽  
...  
Keyword(s):  
Metal Complex ◽  
Hypobaric Hypoxia ◽  
Protective Action ◽  
Complex Compounds ◽  
Acute Hypobaric Hypoxia ◽  
Hypercapnic Hypoxia ◽  
First Time

In experiments on mice undergone to an acute hypercapnic hypoxia and an acute hypobaric hypoxia a screening of antihypoxants among new selenium containing metal complex substances was performed after their intra-abdominal and oral introductions. It was found that substances πQ1983 and πQ2170 on both models of hypoxia make the defensive effects surpassing actions well-known antihypoxants such as amthizole and bemythil. It was shown that antihypoxiс affects of studied substances depend on their caused hypothermia. For the first time the protective action of selenium containing metal complex compounds was demonstrated after their introduction per os.

Asymmetric Copper–Catalyzed Propargylic Amination with Amine Hydrochloride Salts

2021 ◽  
Author(s):  
Jian Huang ◽  
Hanhan Kong ◽  
Sijia Li ◽  
Ruijin Zhang ◽  
Haodong Qian ◽  
...  
Keyword(s):  
Amine Hydrochloride ◽  
Copper Salts ◽  
Propargylic Esters ◽  
First Time ◽  
P Ligands

The highly enantioselective copper-catalyzed propargylic amination of propargylic esters with amine hydrochloride salts has been realized for the first time using copper salts with chiral N,N,P-ligands. This method features a...

A series of Keggin-based compounds constructed by conjugate ring-rich pyrazine and quinoxaline derivatives

2016 ◽  
Vol 45 (35) ◽  
pp. 13925-13936 ◽  
Author(s):  
Aixiang Tian ◽  
Yan Tian ◽  
Yali Ning ◽  
Xue Hou ◽  
Huaiping Ni ◽  
...  
Keyword(s):  
Quinoxaline Derivatives ◽  
Keggin Anions ◽  
First Time ◽  
P Ligands

Ligands L1 and L2 are utilized in POM chemistry for the first time. Different Keggin anions induce distinct 2D structures of compounds 1/2 and 3/4 in Ag–L1 and Ag–L2 systems, respectively. By adding AgI and CuI to the PMo12–L2 system different 3 and 5 were formed.

Mechanistic Approaches for Modifying the Coordination Sphere of Metal–Amyloid-β Complexes: Covalent Adduct Formation and Oxidation

2019 ◽  
Author(s):  
Jiyeon Han ◽  
Hyuck Jin Lee ◽  
Kyu Yeon Kim ◽  
Junghyun Chae ◽  
Mi Hee Lim
Keyword(s):  
Coordination Sphere ◽  
Metal Binding ◽  
Amyloid Β ◽  
Adduct Formation ◽  
Binding Residue ◽  
Covalent Adduct ◽  
Specific Manner ◽  
First Time

<p>We report, f<i>or the first time</i>, a novel mechanistic tactic to directly modify the coordination sphere of Cu(II)–Aβ complexes in a metal binding residue-specific manner, which can prevent Cu(II) binding to Aβ, modulate the aggregation of Cu(II)–Aβ, and generate chemically transformed Aβ with less cytotoxicity, to the best of our knowledge.</p>

Conducting polymer and metal–complex composites formed by complexation of the ligands from the vapour phase

RSC Advances ◽  
2016 ◽  
Vol 6 (35) ◽  
pp. 29448-29452 ◽  
Author(s):  
David Mayevsky ◽  
Orawan Winther-Jensen ◽  
Bjorn Winther-Jensen
Keyword(s):  
Metal Complex ◽  
Metal Ions ◽  
Conducting Polymer ◽  
Polymer Matrix ◽  
Vapour Phase ◽  
First Time

Coordinating ligands to metal-ions inside a conducting polymer matrix via complexation from the vapour phase was shown for the first time.

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