Reactions of a β-diketiminate zinc hydride complex with heterocumulenes

Abstract

The β-diketiminate zinc hydride MesnacnacZnH (1) reacts with CO(2), C(Ni-Pr)(2) and t-BuNCO at ambient temperature with insertion into the Zn-H bond and subsequent formation of the corresponding formato (2), formamido (3) and formamidinato (4) complexes.

Molecular Zinc Dihydride Stabilized by N‐Heterocyclic Carbenes

“…The formate unit is characterized with one singlet at 7.99 ppm in the 1 H NMR spectrum and with one signal at 166.94 ppm in the 13 C{ 1 H} NMR spectrum. These chemical shifts are similar to those reported for [{(Mesnacnac)Zn(O 2 CH)} 2 ] 12. The integration ratio of formate to NHC ligands of 2:1 agrees with the formulation of the molecular structure.…”

Main‐Group‐Metal and Transition‐Metal Complexes Containing Fluorinated β‐Diketiminate Ligands

“…Our interest in complexes containing N , N′ ‐ and N ,O‐chelating amidinate, β‐diketiminate, β‐ketoiminate, and ureate ligands prompted us to evaluate the influence of electron‐withdrawing substituents in β‐diketimines on their electronic nature, leading to the synthesis of β‐diketimine LH 1 {L = HC[C(CF 3 )NC 6 F 5 ] 2 }. 1 was further used as an electron‐poor substituents in main‐group metal (LAlMe 2 4 ) and transition‐metal complexes [LZnEt 5 , LCu(C 6 H 6 ) 6 and LCuCO 7 ].…”

Calcium formamidinate derivatives by hydride insertion of carbodiimides

“…In cases where the parent formamidinate species are required, analogous access necessitates the availability of a suitably reactive, molecular metal hydride. Documented examples of this latter process include rare earth metal (Y, [3][4][5] La 6 and Lu 7 ), transition metal (Fe, 8 Zr, 9 Nb, Ta 10 and Re 11 ), p-block (B, [12][13][14][15] Al, 16,17 Zn, [18][19][20] Ga 16 and Sn 21 ) and s-block metal (Li 22 and Mg 23,24 ) hydrides (Scheme 1(b)).…”