... Hong Yao a , Fan-Shun Meng b , Fu-You Li a , He Tian * b and Chun-Hui Huang * a a State Key Laboratory of Rare Earth Materials Chemistry and Applications ... Materials. ... H, J = 8.2 Hz), 8.24 (d, 1H, Ar-H, J = 8.9 Hz), 8.37 (d, 1H, Ar-H, J = 6.9 Hz), 8.41 (d, 1H, -CH CH-, J = 15.8 Hz ...