The first crystalline calcium porphyrin and tetrakis(tert-butylphenyl)porphyrinato calcium(II): Its synthesis, structure, and binding properties towards alkali and alkaline earth metal salts
L. Bonomo et al., The first crystalline calcium porphyrin and tetrakis(tert-butylphenyl)porphyrinato calcium(II): Its synthesis, structure, and binding properties towards alkali and alkaline earth metal salts, ANGEW CHEM, 40(4), 2001, pp. 771-774