Triazine-polycarboxylic acid complexes: synthesis, structure and photocatalytic activityElectronic supplementary information (ESI) available: Crystallographic data and structure refinement details of complex 3 are given in Table S1. Selected bond lengths and angles for complexes 1, 2 and 4 are listed in Table S2. Their hydrogen bonds and bond angles (°) are given in Table S3. Infrared spectra and UV-vis spectra of complexes 1-4 are shown in Fig. S1-S4 and S5-S8, respectively. Fig. S9-S12 present

• Main Authors: Wang, Zhi Nan, Wang, Xuan, Yue Wei, Si, Xiao Wang, Ji, Ying Bai, Feng, Heng Xing, Yong, Xian Sun, Li
• Format: Article
• Language: English
• ISSN: 1144-0546; 1369-9261
• DOI: 10.1039/c5nj00173k

Four novel transition metal complexes, [Zn 2 (Bpz*eaT) 2 (HBTC) 2 ]·(CH 3 OH) 3 ( 1 ), [Co(Bpz*eaT)(HBTC)]·(CH 3 CH 2 OH) 0.5 ·(H 2 O) 0.5 ( 2 ), [Zn(Bpz*eaT)(H 2 BTA)(pz*H)] ( 3 ) and [Cu 4 (Mpz*T-O 2 ) 4 (BTA)(H 2 O) 8 ]·4H 2 O ( 4 ) (Bpz*eaT, 2,4-bis(3,5-dimethyl-1 H -pyrazol-1-yl)-6-diethylamino-1,3,5-triazine; Mpz*T-O 2 , 6-(3,5-dimethyl-1 H -pyrazol-1-yl)-1,3,5-triazine-2,4(1 H ,3 H )-dione; pz*H, 3,5-dimethyl-1 H -pyrazole; H 3 BTC, benzene-1,3,5-tricarboxylic acid; and H 4 BTA, 1,2,4,5-benzenetetracarboxylic acid), were synthesized by the reaction of metal salts (ZnSO 4 ·7H 2 O, CoCl 2 ·6H 2 O or CuCl 2 ·2H 2 O), pincer N-heterocyclic triazine derivatives and aromatic polycarboxylate ligands. All the complexes were characterized by elemental analysis, IR spectroscopy, UV-vis spectroscopy, thermal gravimetric analysis and single-crystal X-ray diffraction. Structural analysis reveals that complexes 1 and 2 are 2-D layers and complex 4 is a 3-D network structure with hydrogen bonding. In addition, the photocatalytic performances of complexes 1-4 were studied under UV irradiation at room temperature and their photocatalytic activity was also discussed. The result showed that complex 1 possessed higher photocatalytic activity. A series of supramolecular complexes with photocatalytic activity were constructed based on benzene-polycarboxylic acids and triazine derivatives.