Crystal Structure of Tri(8-quinolinol) Yttrium-Tri(8-quinolinol) Nickel Perchlorate [YQ(HQ)2][NiQ3](ClO4)
Zhang Ming-jie, Huang Chun-hui, Xu Guang-xian
Chem. J. Chinese Universities . 1990, (12): 1313 -1316 .