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• W4280491769 abstract "Abstract Lithiation of the bis(pyrazolyl)methanes H 2 C(Pz Ad,Me ) 2 ( 1 a ) and H 2 C(Pz Ph,Ph ) 2 ( 1 b ) and subsequent addition of N,N’ ‐diisopropylcarbodiimide in THF yields [(thf)Li{(Pz Ad,Me ) 2 HC−C(=N i Pr)(N i Pr)}] ( 2 a ) and [(thf)Li{(Pz Ph,Ph ) 2 HC−C(=N i Pr)(N i Pr)}] ( 2 b ). For comparison reasons, the structure of [(thf)Li{(Pz t Bu, t Bu ) 2 HC−C(=NCy)(NCy)}] ( I ) has been determined as well. Protolysis with aqueous ammonium chloride solution gives (Pz Ad,Me ) 2 HC−C(=N i Pr)(NH i Pr) ( 3 a ) and (Pz Ph,Ph ) 2 HC−C(=N i Pr)(NH i Pr) ( 3 b ). Zincation with diethylzinc leads to the formation of [EtZn{(Pz Ad,Me ) 2 HC−C(=N i Pr)(N i Pr)}] ( 4 a ) and [EtZn{(Pz Ph,Ph ) 2 HC−C(=N i Pr)(N i Pr)}] ( 4 b ). The metathetical approach allows preparation and isolation of [ClZn{(Pz Ph,Ph ) 2 HC−C(=N i Pr)(N i Pr)}] ( 5 ). A comparison of the molecular structures of the lithium and zinc complexes allows to elucidate the influence of electronegativity on structural parameters because tetra‐coordinate Li and Zn ions have very similar radii." @default.
• W4280491769 created "2022-05-22" @default.
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• W4280491769 date "2022-05-17" @default.
• W4280491769 modified "2023-09-27" @default.
• W4280491769 title "Bulky Hybrid <i>C‐</i>Scorpionate/Amidinate Complexes of Lithium and Zinc" @default.
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• W4280491769 doi "https://doi.org/10.1002/ejic.202200249" @default.
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