This is the accepted version of the article: Albalad J., Aríñez-Soriano J., Vidal-Gancedo J., Lloveras V., Juanhuix J., Imaz I., Aliaga-Alcalde N., Maspoch D.. Hetero-bimetallic paddlewheel clusters in coordination polymers formed by a water-induced single-crystal-to-single-crystal transformation. Chemical Communications, (2016). 52. : 13397 - . 10.1039/c6cc07653j. Available at: https://dx.doi.org/10.1039/c6cc07653j