A high cisplatin loading of 256.5 mg g−1 (Zr6 : Pt = 1.5 : 1) was achieved by creating defects in the nano-sized UiO-66 metal–organic framework.

Four coordination polymers (CPs) Mn-TMPP (1), Zn-TMPP (2), Mn-THPP (3), and Zn-THPP (4) have been synthesized and characterized (H2TMPP = meso-tetrakis (6-methylpyridin-3-yl) porphyrin; H2THPP = meso-tetrakis (6-(hydroxymethyl) pyridin-3-yl) porphyrin). The...

The heterofunctional lactone furo [3,4-b]pyridin-5(7H)-one (L 1 ) undergoes a coordination-induced ring-opening reaction with Zn(NO 3 ) 2 · 6H 2 O to yield the zwitterionic [Zn(L 1 ') 2 (H 2 O) 2 ] (1, L 1 ' = 2-(hydroxymethyl)nicotinate) with an uncoordinated carboxylate. The same reaction with Cd(NO 3 ) 2 · 4H 2 O provides a twodimensional (2D) network of [Cd(L 1 ') 2 ] n (3) with the carboxylates coordinated to cadmium(II) propagating the assembly. The corresponding reactions of Zn(NO 3 ) 2 · 6H 2 O and Cd(NO 3 ) 2 · 4H 2 O with 2-(hydroxymethyl)isonicotinic acid (HL 2 ) generated zwitter-ionic [Zn(L 2 ) 2 (H 2 O) 2 ] (2) and a 2D network [Cd(L 2 ) 2 ] n ·nDMF (4, DMF = N,N'-dimethylformamide), respectively. Complexes 1-4 are weakly emissive, giving ligand-centered emissions at 409 nm (1), 412/436 nm (2), 404 nm (3), and 412/436 nm (4) in CHCl 3 solutions upon excitation at 330 nm. This work points to the potential of using 'hidden' functionalities widely found in small organic molecules and natural products for the construction of coordination complexes with new functionality and potential applications. Cd(NO 3 ) 2 ·4H 2 O (15.5 mg, 0.05 mmol) and L 1 (13.5 mg, 0.1 mmol) were added to a Pyrex glass tube (10 cm in length and 0.5 cm in diameter) followed by DMF/H 2 O (1 mL/2 mL). The tube was sealed and heated in an oven at 120°C for three days and gradually cooled to ambient temperature at a rate of 5°C min À 1 . The colourless crystals formed were filtered, washed with DMF and dried under vacuum. Yield: (8.1 mg, 39 % based on Cd). Anal. Calcd. (%) for C 14 H 12 CdN 2 O 6 : C 40. 36, H 2.90, N 6.72; found: C 40.78, H 2.91, N 6.93. Cd(NO 3 ) 2 · 4H 2 O (31 mg, 0.1 mmol) and ethyl 2-(hydroxymethyl) isonicotinate (the precursor of HL 2 , 36 mg, 0.2 mmol) were ChemPlusChem Full Papers in DMF/H 2 O (4 mL/4 mL) and heated at 125°C for 72 h in a DURAN glass bottle. The light-yellow crystals formed were filtered and washed with DMF. Yield: (25.0 mg, 51 % based on Cd). Anal.