Structural and Coordination Studies of “Pearl Oysterlike” Porphyrins Zakaria Halime Mohammed Lachkar Thierry Roisnel Philippe Richard Bernard Boitrel 10.1021/ic0703272.s006 https://acs.figshare.com/articles/dataset/Structural_and_Coordination_Studies_of_Pearl_Oysterlike_Porphyrins/2992369 We report the coordination studies of porphyrins with pre-organized but yet flexible straps, each bearing over the center of the porphyrin either a 2,2-malonic acid diethyl ester residue or a 2,2-malonic acid residue. The straps are attached to the porphyrin via two adjacent meso positions, 5,10 and 15,20, respectively, and the 2,2-malonic acid diethyl ester groups are connected to the straps on benzylic carbon atoms. These two structural features allow a significant flexibility of the straps, as confirmed by the comparison of the X-ray structures of the zinc, nickel, and lead complexes of porphyrin <b>1</b>. In the latter, the influence of the lone-electron pair of lead is clearly demonstrated. The coordination of bismuth is also reported. 2007-08-06 00:00:00 malonic strap acid meso positions residue Coordination Studies ester diethyl coordination studies benzylic carbon atoms porphyrin 1