Unusual N-H activation of 2-aminopyrimidine: supramolecular assembly into an Ag(I) metal-organic framework.
A rare example of coordination at the amino group of NH2 pym (2-aminopyrimidine) relevant to N-H activation is described that leads to a novel Ag(I) -imide 3D metal-organic framework (MOF). The coordination of Ag(I) to NH2 pym produced an electron-withdrawing effect and thus increased its acidity, which facilitated the N-H activation and the subsequent formation of the Ag-imide bond. A cooperative metalation/deprotonation process for the N-H activation of NH2 pym is suggested. Interestingly, photoluminescence of 1 is switched on at the low temperature of 77 K.
Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, 250100 (China), Fax: (+86) 531-88364218.
Fu-Ling
FL
Liu
Zheng-Hu
ZH
Xu
Xi-Ying
XY
Zhang
Xing-Po
XP
Wang
Di
D
Sun
NH activation; luminescence; metal-organic frameworks; silver