Materials Data on Gd2(Al3Rh)3 by Materials Project

Gd2(RhAl3)3 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Gd is bonded in a 11-coordinate geometry to eleven Al atoms. There are a spread of Gd–Al bond distances ranging from 3.06–3.14 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 8-coordinate geometry to eight Al atoms. There are four shorter (2.57 Å) and four longer (2.62 Å) Rh–Al bond lengths. In the second Rh site, Rh is bonded in a 8-coordinate geometry to eight Al atoms. There are a spread of Rh–Al bond distances ranging from 2.56–2.62 Å. There are four inequivalent Al sites. In the first Al site, Al is bonded in a 2-coordinate geometry to two equivalent Gd and two equivalent Rh atoms. In the second Al site, Al is bonded in a 3-coordinate geometry to three equivalent Gd and three Rh atoms. In the third Al site, Al is bonded in a 3-coordinate geometry to two equivalent Gd and three Rh atoms. In the fourth Al site, Al is bonded in a 2-coordinate geometry to two equivalent Gd and two equivalent Rh atoms.

Gd₂(RhAl₃)₃结晶于正交晶系（orthorhombic）Cmcm空间群。该晶体结构为三维结构。钆（Gd）采取11配位几何构型，与11个铝（Al）原子成键，Gd–Al键的键长分布范围为3.06~3.14 Å。体系中存在两个非等价的铑（Rh）位点：在第一类铑位点中，铑采取8配位几何构型，与8个铝原子成键，其中包含4条键长为2.57 Å的短Rh–Al键与4条键长为2.62 Å的长Rh–Al键；在第二类铑位点中，铑同样采取8配位几何构型，与8个铝原子成键，Rh–Al键的键长分布范围为2.56~2.62 Å。体系中存在四个非等价的铝位点：第一类铝位点中，铝采取2配位几何构型，与2个等价的钆原子以及2个等价的铑原子成键；第二类铝位点中，铝采取3配位几何构型，与3个等价的钆原子以及3个铑原子成键；第三类铝位点中，铝采取3配位几何构型，与2个等价的钆原子以及3个铑原子成键；第四类铝位点中，铝采取2配位几何构型，与2个等价的钆原子以及2个等价的铑原子成键。