Crystal structure of 2-aminoethylammonium tris-(1,2-ethanediamine) zinc(II)tetraselenoantimonate(V), (C2H9N2)[Zn(C2H8N2)3][SbSe4], C8H33N8SbSe4Zn

Abstract

Source of materialSingle crystals of (C 2 ,dried over Na/CaH 2 ,freshly distilled and degassed) were added to the reaction mixture which was then loaded into aT eflon-lined autoclave with an inner volumeof20mL(filling degree approx. 30%). The sealed autoclave was heated at 443 Kfor 7days before cooling down to room temperature. Air sensitive yellow needles of the target compound were isolated from the crystalline product, which also contained the unreacted selenium.The chemical composition of (Zn:Sb:Se =1:1:4) was confirmed by EDXS measurements. Experimental detailsThe positions of all protons attached to Cand Natoms were located from the difference Fourier map. ), 0.90 Å, and 0.86 Å(NH 2 )with U iso (H) =1.2 U eq (C or N). DiscussionThe solvothermal reaction in amine has proven to be aversatile route for the syntheses of chalcogenometalates [1][2][3][4]. In recent years, an increasingi nteresti nc halcogenidef ramework structuresh as been observed duet ot heir promisingc ombination of zeotypes tructures with novel properties [5]. Although, al arge number of thioantiomonates (Sb x S y )exhibiting avariety of polymeric complex anions have been well explored, the chemistry of higher chalcogenoantimonates (Sb x Se y or Sb x Te y )isless developed [4]. Our recent investigation on the selenoantimonate system using transition metals in ethylenediamine led to an ew (C 2 H 9 N 2 )[Zn (C 2