Keywords: Guapo2.png Porous nanosized spherical polyoxomolybdate based capsule the 20 pores with crown-ether function are filled with guanidinium cations/guests Achim_M C3 BCller own original text self-made 1 2008-01-07 Etkh wikipedia en Etkh original upload log page en wikipedia Guapo2 png 2008-01-07 20 20 Etkh 2080×2160×8 1783235 bytes <nowiki> self-made </nowiki> Organomolybdenum compounds Polyoxometalates |