[Ni(HF₂)(3-Clpy)₄]BF₄ (py = pyridine): evidence for spin exchange along strongly distorted F···H···F^- bridges in a one-dimensional polymeric chain

Jamie L. Manson, Adora G. Baldwin, Brian L. Scott, Jesper Bendix, Rico E. Del Sesto, Paul A. Goddard, Yoshimitsu Kohama, Hope E. Tran, Saman Ghannadzadeh, John Singleton, Tom Lancaster, Johannes S. Möller, Stephen J. Blundell, Francis L. Pratt, Vivien S. Zapf, Jinhee Kang, Changhoon Lee, Myung-Hwan Whangbo, Christopher Baines