(A₁₉N₇)[In₄]₂ (A = Ca, Sr) and (Ca₄N)[In₂]: Synthesis, Crystal Structures, Physical Properties, and Chemical Bonding

Abstract

Single phase powders of (A 19 N 7 )[In 4 ] 2 (A ϭ Ca, Sr) and (Ca 4 N)[In 2 ] were prepared by reaction of melt beads of the metallic components with nitrogen.

Aluminium, gallium, indium and thallium

“…There is no binary In-Rb compound analogous to [Rb 14 In x Mg 1Àx ] (x = 0.79 to 0.88), which contains pentacapped trigonal prismatic {In 11 } units. 183 185 Curious In chemistry with dkio-analogues was published last year. The In(I) complex [In{(dipp)NC(Me)CHC(Me)NC 6 H 4 -2-OMe}] was found to be monomeric, but the less bulky ligand in [{(mes)NC(Me)CHC(Me)N(mes)}In] 2 allowed a dimerisation by means of an In-In single bond.…”

Synthesis, Characterization, and Chemical Bonding Analysis of the Lithium Alkaline‐earth Metal Gallide Nitrides Li2(Ca3N)2[Ga4] and Li2(Sr3N)2[Ga4]

“…(Ca 7 N 2 )[Tl][Tl 2 ]. [18] Isolated tetrahedra [E 4 ] (E = Ga, In) are observed in Li 7 (Ba 6 N)[Ga 4 ] 2 , [17] the isotypic phases (Ca 19 N 7 )[In 4 ] 2 [19,20] and (Sr 19 N 7 )[In 4 ] 2 , [20] as well as in the isotypic phases (Li x ,In y ) 2 (AE 3 N 1-x ) 2 [In 4 ] (AE = Sr, [21] Ba [21,22] ); up to now, these latter phases are the only group 13 metalide nitrides sporting a phase width. The isotypic phases (Sr 6 N)[Ga 5 ], [23] (Ba 6 N)[Ga 5 ], [23] and (Ba 6 N)[In 5 ] [24] contain [E 5 ] units in the form of trigonal bipyramids.…”

“…The same species [In 5 ] together with isolated units [In 8 ] are observed in (Ba 19 N 9 ) In 9 . [25] Zigzag chains occur in (Ca 2 N)[In] [26] and the isotypic phases (Ca 4 N)[In 2 ] [20,27] and (Sr 4 N)[In 2 ]. [27] Linear chains or chain fragments are present in (Ca 7 N 4 )[Ga 1.33 ], [28] (Ca 7 N 4 )[In 1.02 ], [28] and (Ca 7 N 4 )[Tl 0.97 ].…”

(Ca7N4)[Mx] (M=Ag, Ga, In, Tl): Linear Metal Chains as Guests in a Subnitride Host

“…Condensation of the coordination polyhedra (EA 6 N) through common corners and edges leads to structural patterns of various dimensionalities with different kinds of cavities, [1] which contain main-group and transition-metal species with various homo-or heteronuclear interconnections (e.g., (Sr 6 N) [Ga 5 ], [2] (Sr 5 N) [NbN 4 ], [3] (Ca 3 N) 2 [FeN 3 ], [4] (Ca 4 N)-[In 2 ], [5] (Ca 3 N)[Au] [6] ). Ternary nitrides with the composition (Ca 7 N 4 )[M x ] (M = Ag, Ga, In, Tl) were first investigated in the late 1990s.…”