Abstract A family of new compounds with a general formula MIIMIIIF5(H2O)7 (MII = Co2+ and Ni2+, MIII = Mn3+, Ga3+, and In3+), along with a related compound [Ni(H2O)6][InF4(H2O)2]2, was obtained via hydrothermal crystal growth and characterized using single crystal X-ray diffraction. All compounds adopt related structural motifs and differ in slight symmetry distortions rather than overall change in packing. No direct relationships between the cation size and symmetry of the crystals were found, moreover, [Co(H2O)6]2[MnF4(H2O)2][MnF6] that exhibits Jahn-Teller distortions of the Mn octahedra adopts the same structure as [Ni(H2O)6]2[InF4(H2O)2][InF6], which is lacking such distortions. Magnetic and spectroscopic properties of the former compound are also reported.

中文翻译：

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MMF5(H2O)7 (M = Co2+ 和 Ni2+, M = Mn3+, Ga3+, 和 In3+) 的水热合成和性质

摘要 通式为 MIIMIIIF5(H2O)7 的一类新化合物（MII = Co2+ 和 Ni2+，MIII = Mn3+、Ga3+ 和 In3+），以及相关化合物 [Ni(H2O)6][InF4(H2O)2 ]2，通过水热晶体生长获得，并使用单晶 X 射线衍射表征。所有化合物都采用相关的结构基序，不同之处在于轻微的对称扭曲而不是堆积的整体变化。没有发现阳离子尺寸和晶体对称性之间的直接关系，此外，表现出锰八面体的 Jahn-Teller 畸变的 [Co(H2O)6]2[MnF4(H2O)2][MnF6] 采用与[Ni(H2O)6]2[InF4(H2O)2][InF6]，没有这种失真。还报告了前一种化合物的磁性和光谱特性。