“…During the past few years, many rare earth (R) complex borates, for example, Nd x Y 1Àx Al 3 (BO 3 ) 4 (NYAB) [1], RCa 4 O(BO 3 ) 3 (RCOB) [2], LaCa 2 B 10 O 19 (LCB) [3], have been extensively investigated because of their potential applications in nonlinear optics (NLO) and laser engineering. Na 3 La 9 O 3 (BO 3 ) 8 (NLBO) crystallizes in space group P62m with a unit cell of dimensions a ¼ 8.9033(3) Å , c ¼ 8.7131(3) Å for Z ¼ 1 [4,5].…”