Corrigenda for four articles.
The acknowledgement text is corrected in four articles: Li, Wang & Ye [Acta Cryst. (2014), C70, 992-997], Li & Wang [Acta Cryst. (2014), C70, 1054-1056], Li [Acta Cryst. (2015), C71, 65-68] and Li, Wang & Zhou [Acta Cryst. (2015), C71, 93-96].
Ordered Matter Science Research Center, Southeast University, Nanjing 211189, People's Republic of China.
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