Protolysis of the transition-metal diamides
 [MN(SiMe
   3
 )
   2
 }
   2
 (thf)
 
   n
 ] (M = Cr, Mn, Fe or Co) with 2
 equivalents of phosphinochalcogenoic amides
 Bu
   t
 
   2
 P(E)NHR (E = Se or Te,
 R = Pr
   i
  or cyclo-C
   6
 H
   11
 )
 gave a series of thermally stable metal–selenium and
 –tellurium complexes
 [MBu
   t
 
   2
 P(E)NR}
   2
 ]. The complex
 [NiBu
   t
 
   2
 P(Se)NR}
   2
 ] was
 obtained from Li[Bu
   t
 
   2
 (Se)NR] and
 [NiCl
   2
 (PMe
   3
 )
   2
 ]. The compounds sublime
 readily under reduced pressure and are suitable for the gas-phase
 deposition of metal chalcogenide films. The selenium precursors lead to
 MSe (M = Cr, Mn, Fe or Ni), while tellurium complexes
 afford MTe
   2
  (M = Fe, Mn or Co). By contrast,
 [CoBu
   t
 
   2
 P(Se)NR}
   2
 ] gives
 Co
   3
 Se
   4
 , while
 [NiBu
   t
 
   2
 P(Se)NR}
   2
 ] generates
 NiSe or Ni
   6
 Se
   5
 , depending on the deposition
 conditions.
                                    过渡
金属二酰胺的原解离反应 [MN(SiMe₃)₂}₂(thf)ₙ](M = Cr, Mn, Fe 或 Co)与两个当量的
磷氟硫氨基化合物 Bu₂P(E)NHR(E = Se 或 Te,R = Pr₁ 或
环己烷)反应,生成了一系列热稳定的
金属-
硒和-
碲配合物 [MBu₂P(E)NR}₂]。配合物 [NiBu₂P(Se)NR}₂] 是由 Li[Bu₂(Se)NR] 和 [NiCl₂(PMe₃)₂] 反应获得的。这些化合物在减压下易于升华,并适合用于
金属
硫族化物薄膜的气相沉积。
硒前体导致 MSe(M = Cr, Mn, Fe 或 Ni),而
碲配合物则提供 
MTe₂(M = Fe, Mn 或 Co)。相反,[CoBu₂P(Se)NR}₂] 生成 Co₃Se₄,而 [NiBu₂P(Se)NR}₂] 则根据沉积条件生成 NiSe 或 Ni₆Se₅。