FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1199651458> ?p ?o ?g. }

• W1199651458 endingPage "8754" @default.
• W1199651458 startingPage "8744" @default.
• W1199651458 abstract "The remarkable chemistry of mononuclear complexes featuring tridentate, meridionally chelating “pincer” ligands has stimulated the development of ligand frameworks containing multiple pincer sites. Here, the coordination chemistry of a novel pentadentate ligand (LN3O2) that provides two closely spaced NNO pincer-type compartments fused together at a central diarylamido unit is described. The trianionic LN3O2 chelate supports homobimetallic structures in which each M(II) ion (M = Co, Cu, Zn) is bound in a meridional fashion by the bridging diarylamido N atom and O,N-donors of the salicyaldimine arms. The metal centers are also coordinated by a mono- or bidentate auxiliary ligand (Laux), resulting in complexes with the general form [M2(LN3O2)(Laux)2]+ (where Laux = 1-methyl-benzimidazole (1MeBI), 2,2′-bipyridine (bpy), 4,4′-dibromo-2,2′-bipyridine (bpyBr2), or (S)-2-(4-isopropyl-4,5-dihydrooxazolyl)pyridine (S-iPrOxPy)). The fused nature of the NNO pincer sites results in short metal–metal distances ranging from 2.70 Å for [Co2(LN3O2) (bpy)2]+ to 3.28 Å for [Zn2(LN3O2) (bpy)2]+, as revealed by X-ray crystallography. The complexes possess C2 symmetry due to the twisting of the aryl rings of the μ-NAr2 core; spectroscopic studies indicate that chiral Laux ligands, such as S-iPrOxPy, are capable of controlling the helical sense of the LN3O2 scaffold. Since the four- or five-coordinate M(II) centers are linked solely by the amido moiety, each features an open coordination site in the intermetallic region, allowing for the possibility of metal–metal cooperativity in small-molecule activation. Indeed, the dicobalt(II) complex [Co2(LN3O2) (bpyBr2)2]+ reacts with O2 to yield a dicobalt(III) species with a μ-1,2-peroxo ligand. The bpy-containing complexes exhibit rich electrochemical properties due to multiple metal- and ligand-based redox events across a wide (3.0 V) potential window. Using electron paramagnetic resonance (EPR) spectroscopy and density functional theory (DFT), it was determined that one-electron oxidation of [Co2(LN3O2) (bpy)2]+ results in formation of a S = 1/2 species with a LN3O2-based radical coupled to low-spin Co(II) centers." @default.
• W1199651458 created "2016-06-24" @default.
• W1199651458 creator A5055659095 @default.
• W1199651458 creator A5080600554 @default.
• W1199651458 creator A5084381111 @default.
• W1199651458 date "2015-08-17" @default.
• W1199651458 modified "2023-09-26" @default.
• W1199651458 title "Bimetallic Complexes Supported by a Redox-Active Ligand with Fused Pincer-Type Coordination Sites" @default.
• W1199651458 cites W115678415 @default.
• W1199651458 cites W1515379243 @default.
• W1199651458 cites W1545315949 @default.
• W1199651458 cites W1963807845 @default.
• W1199651458 cites W1969481851 @default.
• W1199651458 cites W1969911920 @default.
• W1199651458 cites W1977891840 @default.
• W1199651458 cites W1980833666 @default.
• W1199651458 cites W1983778754 @default.
• W1199651458 cites W1984174387 @default.
• W1199651458 cites W1985650377 @default.
• W1199651458 cites W1988091937 @default.
• W1199651458 cites W1991647734 @default.
• W1199651458 cites W1992717920 @default.
• W1199651458 cites W1993517595 @default.
• W1199651458 cites W1994628146 @default.
• W1199651458 cites W1998839152 @default.
• W1199651458 cites W1999537827 @default.
• W1199651458 cites W2002385333 @default.
• W1199651458 cites W2004531462 @default.
• W1199651458 cites W2010243027 @default.
• W1199651458 cites W2016862869 @default.
• W1199651458 cites W2019130447 @default.
• W1199651458 cites W2020104580 @default.
• W1199651458 cites W2023271753 @default.
• W1199651458 cites W2026429663 @default.
• W1199651458 cites W2027605395 @default.
• W1199651458 cites W2028125440 @default.
• W1199651458 cites W2030687437 @default.
• W1199651458 cites W2037529462 @default.
• W1199651458 cites W2037832728 @default.
• W1199651458 cites W2038873690 @default.
• W1199651458 cites W2039123760 @default.
• W1199651458 cites W2040891489 @default.
• W1199651458 cites W2041041109 @default.
• W1199651458 cites W2042852314 @default.
• W1199651458 cites W2043873042 @default.
• W1199651458 cites W2045952721 @default.
• W1199651458 cites W2047049197 @default.
• W1199651458 cites W2047853910 @default.
• W1199651458 cites W2049030672 @default.
• W1199651458 cites W2051154284 @default.
• W1199651458 cites W2055069218 @default.
• W1199651458 cites W2055563809 @default.
• W1199651458 cites W2056496237 @default.
• W1199651458 cites W2058210956 @default.
• W1199651458 cites W2058498570 @default.
• W1199651458 cites W2059205366 @default.
• W1199651458 cites W2059596687 @default.
• W1199651458 cites W2066208130 @default.
• W1199651458 cites W2066443439 @default.
• W1199651458 cites W2067454566 @default.
• W1199651458 cites W2068431087 @default.
• W1199651458 cites W2076503435 @default.
• W1199651458 cites W2077708265 @default.
• W1199651458 cites W2078146328 @default.
• W1199651458 cites W2079941105 @default.
• W1199651458 cites W2081674162 @default.
• W1199651458 cites W2082492471 @default.
• W1199651458 cites W2082598922 @default.
• W1199651458 cites W2084600364 @default.
• W1199651458 cites W2085184852 @default.
• W1199651458 cites W2085736282 @default.
• W1199651458 cites W2091993491 @default.
• W1199651458 cites W2097744994 @default.
• W1199651458 cites W2105249240 @default.
• W1199651458 cites W2105470751 @default.
• W1199651458 cites W2107055594 @default.
• W1199651458 cites W2109131933 @default.
• W1199651458 cites W2114605408 @default.
• W1199651458 cites W2118947524 @default.
• W1199651458 cites W2125510609 @default.
• W1199651458 cites W2125772924 @default.
• W1199651458 cites W2127160474 @default.
• W1199651458 cites W2131350133 @default.
• W1199651458 cites W2132291425 @default.
• W1199651458 cites W2133320381 @default.
• W1199651458 cites W2135004772 @default.
• W1199651458 cites W2135834288 @default.
• W1199651458 cites W2136218557 @default.
• W1199651458 cites W2137332319 @default.
• W1199651458 cites W2143981217 @default.
• W1199651458 cites W2145668500 @default.
• W1199651458 cites W2146051607 @default.
• W1199651458 cites W2152870679 @default.
• W1199651458 cites W2159180929 @default.
• W1199651458 cites W2160443487 @default.
• W1199651458 cites W2161428240 @default.
• W1199651458 cites W2234612189 @default.
• W1199651458 cites W2312660543 @default.

• next