Nitrogen oxyanion reduction by Co(ii) augmented by a proton responsive ligand: recruiting multiple metals

2020 ◽  
Vol 49 (23) ◽  
pp. 7891-7896 ◽  
Author(s):  
Alyssa C. Cabelof ◽  
Veronica Carta ◽  
Chun-Hsing Chen ◽  
Kenneth G. Caulton
Keyword(s):  
Pincer Ligand ◽  
Divalent Cobalt

Deoxygenation of nitrite oxygen with divalent cobalt was achieved using (PNNH)CoCl2, carrying a pyridyl pincer ligand with one P(t-Bu)2 arm and one pyrazole arm.

Effect of Hydrated Metal Salts on the Coordination Product of Cobalt(II) halide and PNP Type Ligand, 2,6-bis(di-tertbutylphosphinomethyl) pyridine

2018 ◽  
Author(s):  
Tasneem Siddiquee ◽  
Abdul Goni
Keyword(s):  
Metal Salts ◽  
Molar Ratio ◽  
Pincer Complexes ◽  
Asymmetric Unit ◽  
X Ray Diffraction ◽  
Pincer Ligand ◽  
Tetrahedral Geometry ◽  
X Ray ◽  
Distorted Tetrahedral Geometry ◽  
Cobalt Center

Chemical treatment of CoX<sub>2</sub><b><sup>. </sup></b>6H<sub>2</sub>O (X = Cl, Br, I) with the potentially tridentate PNP pincer ligand 2,6-bis(di-<i>tert</i>-butylphosphinomethyl)pyridine in 1:1 molar ratio results in cobalt(II) halide-PNP pincer complexes. The effect of the hydrated metal source on molecular structure and geometry of the complexes was studied by single crystal X-ray diffraction analysis. The complexes are neutral and the cobalt center adopts a penta-coordinate system with potential atropisomerization. Within the unit cell there are two distinct molecules per asymmetric unit. One of the two phosphorus atoms in the PNP ligand was observed to be partially oxidized to phosphinoxide. Disorder in the structure reflects a mixture of square pyramidal and distorted tetrahedral geometry.

scholarly journals Assembly of a Dihydrideborate and Two Aryl Nitriles to Form a C,N,N′-Pincer Ligand Coordinated to Osmium

2021 ◽  
Vol 40 (6) ◽  
pp. 635-642
Author(s):  
Juan C. Babón ◽  
Miguel A. Esteruelas ◽  
Israel Fernández ◽  
Ana M. López ◽  
Enrique Oñate
Keyword(s):  
Pincer Ligand ◽  
Aryl Nitriles

scholarly journals Synthesis, Structure and In Vitro Anticancer Activity of Pd(II) Complex of Pyrazolyl-s-Triazine Ligand; A New Example of Metal-Mediated Hydrolysis of s-Triazine Pincer Ligand

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 119
Author(s):  
Jamal Lasri ◽  
Matti Haukka ◽  
Hessa H. Al-Rasheed ◽  
Nael Abutaha ◽  
Ayman El-Faham ◽  
...  
Keyword(s):  
Thermal Conditions ◽  
Molar Ratio ◽  
Chloride Salt ◽  
Pincer Ligand ◽  
Hydrogen Bonding Interactions ◽  
Square Planar ◽  
Hirshfeld Analysis ◽  
Hydrolysis Of ◽  
Mcf 7

The square planar complex [Pd(PT)Cl(H2O)]*H2O (HPT: 6-(3,5-dimethyl-1H-pyrazol-1-yl)-1,3,5-triazine-2,4(1H,3H)-dione) was obtained by the reaction of 2-methoxy-4,6-bis(3,5-dimethyl-1H-pyrazol-1-yl)-1,3,5-triazine (MBPT) pincer ligand with PdCl2 in a molar ratio (1:1) under thermal conditions and using acetone as a solvent. The reaction proceeded via C-N cleavage of one C-N moiety that connects the pyrazole and s-triazine combined with the hydrolysis of the O-CH3 group. The reaction of the chloride salt of its higher congener (PtCl2) gave [Pt(3,5-dimethyl-1H-pyrazole)2Cl2]. The crystal structure of [Pd(PT)Cl(H2O)]*H2O complex is stabilized by inter- and intra-molecular hydrogen bonding interactions. Hirshfeld analysis revealed that the H...H (34.6%), O...H (23.6%), and Cl...H (7.8%) interactions are the major contacts in the crystal. The charges at Pd, H2O, Cl and PT are changed to 0.4995, 0.2216, −0.4294 and −0.2917 instead of +2, 0, −1 and −1, respectively, using the MPW1PW91 method. [Pd(PT)Cl(H2O)]*H2O complex has almost equal activities against MDA-MB-231 and MCF-7 cell lines with IC50 of 38.3 µg/mL.

Lowering the Barrier to C–H Activation at IrIII through Pincer Ligand Design

2021 ◽  
Author(s):  
Sophie B. Rubashkin ◽  
Wan-Yi Chu ◽  
Karen I. Goldberg
Keyword(s):  
Ligand Design ◽  
Pincer Ligand

scholarly journals Bright luminescent lithium and magnesium carbene complexes

2021 ◽  
Author(s):  
Piermaria Pinter ◽  
Christoph M. Schüßlbauer ◽  
Fabian A. Watt ◽  
Nicole Dickmann ◽  
Regine Herbst-Irmer ◽  
...  
Keyword(s):  
Pincer Ligand ◽  
Carbene Complexes ◽  
Magnesium Complexes

Lithium- and magnesium complexes of a CNC pincer ligand composed of carbazole and two mesoionic carbenes are bright luminescent, because the metals prevent molecular distortions upon excitation.

scholarly journals Cover Picture: Selective Hydrogen Generation from Formic Acid with Well-Defined Complexes of Ruthenium and Phosphorus-Nitrogen PN3 -Pincer Ligand (Chem. Asian J. 9/2016)

2016 ◽  
Vol 11 (9) ◽  
pp. 1294-1294
Author(s):  
Yupeng Pan ◽  
Cheng-Ling Pan ◽  
Yufan Zhang ◽  
Huaifeng Li ◽  
Shixiong Min ◽  
...  
Keyword(s):  
Formic Acid ◽  
Hydrogen Generation ◽  
Pincer Ligand

Organobismuth compounds with the pincer ligand 2,6-(Me2NCH2)2C6H3: Monoorganobismuth(iii) carbonate, sulfate, nitrate, and a diorganobismuthenium(iii) salt

2010 ◽  
Vol 39 (46) ◽  
pp. 11277 ◽  
Author(s):  
Hans J. Breunig ◽  
Mihai G. Nema ◽  
Cristian Silvestru ◽  
Albert P. Soran ◽  
Richard A. Varga
Keyword(s):  
Pincer Ligand

Palladium(II) complexes bearing the new pincer ligand 3,5-bis(indazol-2-ylmethyl)toluene; synthesis and catalytic properties

2010 ◽  
Vol 13 (9) ◽  
pp. 1025-1028 ◽  
Author(s):  
John Hurtado ◽  
Andrés Ibañez ◽  
René Rojas ◽  
Mauricio Valderrama
Keyword(s):  
Catalytic Properties ◽  
Pincer Ligand
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