Tris(butadiene) Metal Complexes of the First-Row Transition Metals versus Coupling of Butadiene to Eight- and Twelve-Carbon Hydrocarbon Chains

2019 ◽  
Vol 123 (26) ◽  
pp. 5542-5554 ◽  
Author(s):  
Qunchao Fan ◽  
Huidong Li ◽  
Jia Fu ◽  
Zhixiang Fan ◽  
Yonggen Xu ◽  
...  
Keyword(s):  
Transition Metals ◽  
Metal Complexes ◽  
Hydrocarbon Chains ◽  
Versus Coupling

Endo- and exohedral chloro-fulleride as η5 ligands: A DFT study on the first-row transition metal complexes

2021 ◽  
Author(s):  
Sebastian Anila ◽  
Cherumuttathu Hariharan Suresh
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Dft Study ◽  
C60 Fullerene ◽  
Ring Fusion ◽  
Coordination Modes

C60 fullerene coordinates to transition metals in η2-fashion through its C-C bond at [6,6] ring fusion whereas other coordination modes η3, η4, η5 and η6 are rarely observed. The coordination...

scholarly journals Synthesis and Modification of Some New Transition Metal Complexes of Poly (vinyl chloride)

2017 ◽  
Vol 14 (1) ◽  
pp. 202-207
Author(s):  
Baghdad Science Journal
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Metal Complexes ◽  
Ftir Spectroscopy ◽  
Vinyl Chloride ◽  
Transition Metal Complexes ◽  
Visible Spectroscopy ◽  
Poly Vinyl Chloride

Theligand4-[5-(2-hydoxy-phenyl)- [1,3,4- thiadiazole-2- ylimino methyl]-1,5-dimethyl -2-phenyl-1,2-dihydro-pyrazol-3-one [HL1] is prepared and characterized. It is reacted with poly(vinyl chloride) (PVC) in THF to form the PVC-L compounds ,PVC-L interacted with ions of transition metals to form PVC-L-MII complexes .All prepared compounds are characterized by FTIR spectroscopy, u.v-visible spectroscopy, C.H.N.S. analysis and some of them by 1HNMR

3d transition metal complexes with a julolidine–quinoline based ligand: structures, spectroscopy and optical properties

2016 ◽  
Vol 3 (2) ◽  
pp. 286-295 ◽  
Author(s):  
Daniel J. Fanna ◽  
Yingjie Zhang ◽  
Li Li ◽  
Inna Karatchevtseva ◽  
Nicholas D. Shepherd ◽  
...  
Keyword(s):  
Optical Properties ◽  
Transition Metal ◽  
Transition Metals ◽  
Metal Complexes ◽  
Transition Metal Complexes

Five new complexes of a julolidine–quinoline based ligand with 3d transition metals have been synthesised and structurally characterised.

High-spin enforcement in first-row metal complexes of a constrained polyaromatic ligand: synthesis, structure, and properties

2018 ◽  
Vol 42 (23) ◽  
pp. 18667-18677 ◽  
Author(s):  
Lizhu Chen ◽  
Hunter A. Dulaney ◽  
Branford O. Wilkins ◽  
Sarah Farmer ◽  
Yanbing Zhang ◽  
...  
Keyword(s):  
Coordination Chemistry ◽  
Transition Metals ◽  
Metal Complexes ◽  
High Spin ◽  
Structure And Properties ◽  
Polypyridyl Ligand ◽  
Ligand Synthesis

The coordination chemistry of a rigid tetradentate polypyridyl ligand has been developed with first-row transition metals Mn(ii), Fe(ii), Co(ii), Ni(ii), and Zn(ii).

scholarly journals Half- and mixed-sandwich metallacarboranes for potential applications in medicine

2019 ◽  
Vol 91 (4) ◽  
pp. 563-573 ◽  
Author(s):  
Marta Gozzi ◽  
Benedikt Schwarze ◽  
Evamarie Hey-Hawkins
Keyword(s):  
Organic Chemistry ◽  
Transition Metal ◽  
Transition Metals ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Structural Features ◽  
Biological Stability ◽  
Potential Applications ◽  
Sandwich Type ◽  
Isolobal Analogy

Abstract Today, medicinal chemistry is still clearly dominated by organic chemistry, and commercially available boron-based drugs are rare. In contrast to hydrocarbons, boranes prefer the formation of polyhedral clusters via delocalized 3c2e bonds, such as polyhedral dicarba-closo-dodecaborane(12) (closo-C2B10H12). These clusters have remarkable biological stability, and the three isomers, 1,2- (ortho), 1,7- (meta), and 1,12-dicarba-closo-dodecaborane(12) (para), have attracted much interest due to their unique structural features. Furthermore, anionic nido clusters ([7,8-C2B9H11]2−), derived from the neutral icosahedral closo cluster 1,2-dicarba-closo-dodecaborane(12) by deboronation followed by deprotonation are suitable ligands for transition metals and offer the possibility to form metallacarboranes, for example via coordination through the upper pentagonal face of the cluster. The isolobal analogy between the cyclopentadienyl(–1) ligand (Cp−) and [C2B9H11]2− clusters (dicarbollide anion, Cb2−) is the motivation in using Cb2− as ligand for coordination to a metal center to design compounds for various applications. This review focuses on potential applications of half- and mixed-sandwich-type transition metal complexes in medicine.

scholarly journals Blue transition metal complexes of a natural bilin-type chlorophyll catabolite

2014 ◽  
Vol 5 (9) ◽  
pp. 3388-3395 ◽  
Author(s):  
Chengjie Li ◽  
Markus Ulrich ◽  
Xiujun Liu ◽  
Klaus Wurst ◽  
Thomas Müller ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Degradation Products ◽  
Red Fluorescence ◽  
Highly Sensitive ◽  
Chlorophyll Catabolite

Natural pink degradation products of chlorophyll occur in de-greened leaves. They form blue transition metal complexes, some of which show intensive red fluorescence and may serve as highly sensitive reporters of transition metals in plants.

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