Materials Data on Na(TbS2)3 by Materials Project

TbNa(TbS2)2(S)2 crystallizes in the orthorhombic Cmmm space group. The structure is two-dimensional and consists of four hydrogen sulfide molecules; two terbium molecules; and one Na(TbS2)2 sheet oriented in the (0, 0, 1) direction. In the Na(TbS2)2 sheet, Na1+ is bonded in a distorted rectangular see-saw-like geometry to four equivalent S2- atoms. All Na–S bond lengths are 2.80 Å. Tb+3.67+ is bonded in a linear geometry to two equivalent S2- atoms. Both Tb–S bond lengths are 2.62 Å. S2- is bonded in a 2-coordinate geometry to one Na1+, one Tb+3.67+, and one S2- atom. The S–S bond length is 2.18 Å.

TbNa(TbS₂)₂(S)₂晶体属于正交晶系（orthorhombic），空间群为Cmmm。该结构为二维结构，包含4个硫化氢（hydrogen sulfide）分子、2个铽（terbium）分子，以及1个沿(0, 0, 1)方向取向的Na(TbS₂)₂层。在Na(TbS₂)₂层中，Na⁺以畸变矩形跷跷板型配位几何与4个等价的S²⁻成键，所有Na–S键长均为2.80 Å。Tb⁺3.67以直线型配位几何与2个等价的S²⁻成键，两条Tb–S键长均为2.62 Å。S²⁻以二配位几何分别与1个Na⁺、1个Tb⁺3.67以及1个S²⁻成键，S–S键长为2.18 Å。