Cu (H C O O)2 (H2 O)4

C₂H₁₀CuO₈

Omura, T.Moriyoshi, C.Ikeda, S.Itoh, K.Fukazawa, H.

Ferroelectrics (2002) 270, 375-380

a=8.158Å   b=8.128Å   c=6.286Å

α=90°   β=101.01°   γ=90°