Guest-compound-enveloping polymer-metal-complex crystal, method for producing same, method for preparing crystal structure analysis sample, and method for determining molecular structure of organic compound

A method for preparing a crystal structure analysis sample in which a molecule of an organic compound for which a molecular structure is to be determined, is arranged in pores and voids of a polymer-metal complex crystal in an ordered manner, the method comprising:

• immersing a polymer-metal complex crystal including a guest compound in a solvent solution that includes the organic compound,
• the polymer-metal complex crystal including a guest compound being the polymer-metal complex crystal comprising a polymer-metal complex that comprises a ligand having two or more coordinating moieties, and a metal ion that serves as a center metal, the polymer-metal complex having a three-dimensional network structure that is formed by the metal ion and the ligand that is coordinated to the metal ion, and having pores and voids that are three-dimensionally arranged in the three-dimensional network structure in an ordered manner, at least one compound selected from a group consisting of an aliphatic hydrocarbon, an alicyclic hydrocarbon, an ether, an ester, an aromatic hydrocarbon, a halogenated hydrocarbon, and a nitrile being included in the pores and the voids as a guest compound (A), and
• a ratio of an amount of the guest compound (A) present in the pores and the voids to a total amount of the guest compound included in the pores and the voids being 60 mol % or more.