I have been searching for information on the crystal structure of CH3NH3GeCl3 in the trigonal R3m space group, but have not found any information on the atomic position or CIF. I searched various databases, such as COD and Materials Project, but found no relevant results.

While I have found the CIF of MAGeCl3 in the Pnma space group, which crystallizes in low temperatures, I am specifically interested in the R3m phase of CH3NH3GeCl3 at high temperatures.

It would be greatly appreciated if anyone has any information on the R3m CIF for CH3NH3GeCl3 (MAGeCl3), or any related materials such as MAPbI3.

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