PMID- 34213516
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20210728
LR  - 20210728
IS  - 1477-9234 (Electronic)
IS  - 1477-9226 (Linking)
VI  - 50
IP  - 29
DP  - 2021 Jul 27
TI  - Triazole-directed fabrication of polyoxovanadate-based metal-organic frameworks 
      as efficient multifunctional heterogeneous catalysts for the Knoevenagel 
      condensation and oxidation of alcohols.
PG  - 10082-10091
LID - 10.1039/d1dt01413g [doi]
AB  - By introducing 4-amino-1,2,4-triazole (4-NH2-trz), three new 
      polyoxovanadate-based metal-organic frameworks (PMOFs) 
      [Ni3(4-NH2-trz)6][V6O18].3H2O (1), [Co3(4-NH2-trz)6][V6O18].3H2O (2) and 
      [Cu3OH(4-NH2-trz)3H2O][VO3]5.H2O (3) have been synthesized and thoroughly 
      characterized by single-crystal X-ray diffraction (SXRD), powder X-ray 
      diffraction (PXRD), infrared spectroscopy (FT-IR), thermogravimetric (TG) 
      analysis and elemental analysis (EA). Among them, PMOFs 1 and 2 had similar 
      structures containing [V6O18]6- clusters; however, PMOF 3 was isolated as a 
      structure containing a [VO3]55- cluster when the amount of the 4-NH2-trz ligand 
      was reduced to half with the other synthesis conditions being the same as those 
      of PMOFs 1 and 2 except for the transition-metal chlorides. Furthermore, the 
      negative charges of polyoxovanadate [V6O18]6- and [VO3]55- anions were balanced 
      by trinuclear complex cations [Ni3(4-NH2-trz)6]6- for 1, [Co3(4-NH2-trz)6]6- for 
      2 and [Cu3OH(4-NH2-trz)3H2O]5- for 3, respectively. PMOFs 1-3 were further used 
      as heterogeneous catalysts in the Knoevenagel condensation under solvent-free 
      conditions and showed high catalytic activity. PMOF 1 showed moderate catalytic 
      activities in the oxidation of various aromatic alcohols using H2O2 as an 
      oxidant. Moreover, PMOF 1 could be reused at least three times without losing its 
      activity.
FAU - Li, Jikun
AU  - Li J
AD  - College of Chemistry and Chemical Engineering, Taishan University, Tai'an, 
      271021, Shandong, P. R. China. lijk0212@163.com.
FAU - Wei, Chuanping
AU  - Wei C
AD  - College of Chemistry and Chemical Engineering, Taishan University, Tai'an, 
      271021, Shandong, P. R. China. lijk0212@163.com.
FAU - Han, Yinfeng
AU  - Han Y
AD  - College of Chemistry and Chemical Engineering, Taishan University, Tai'an, 
      271021, Shandong, P. R. China. lijk0212@163.com.
FAU - Mei, Yu
AU  - Mei Y
AD  - College of Chemistry and Chemical Engineering, Taishan University, Tai'an, 
      271021, Shandong, P. R. China. lijk0212@163.com.
FAU - Cheng, Xueli
AU  - Cheng X
AD  - College of Chemistry and Chemical Engineering, Taishan University, Tai'an, 
      271021, Shandong, P. R. China. lijk0212@163.com.
FAU - Huang, Xianqiang
AU  - Huang X
AUID- ORCID: 0000-0002-5063-8825
AD  - Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell 
      Technology, School of Chemistry & Chemical Engineering, Liaocheng University, 
      Liaocheng, 252059, Shandong, P. R. China. hxqqxh2008@163.com.
FAU - Hu, Changwen
AU  - Hu C
AUID- ORCID: 0000-0002-9026-1145
AD  - Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory 
      of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry, 
      Beijing Institute of Technology, Beijing, 100081 P. R. China. cwhu@bit.edu.cn.
LA  - eng
PT  - Journal Article
PL  - England
TA  - Dalton Trans
JT  - Dalton transactions (Cambridge, England : 2003)
JID - 101176026
SB  - IM
EDAT- 2021/07/03 06:00
MHDA- 2021/07/03 06:01
CRDT- 2021/07/02 12:15
PHST- 2021/07/03 06:00 [pubmed]
PHST- 2021/07/03 06:01 [medline]
PHST- 2021/07/02 12:15 [entrez]
AID - 10.1039/d1dt01413g [doi]
PST - ppublish
SO  - Dalton Trans. 2021 Jul 27;50(29):10082-10091. doi: 10.1039/d1dt01413g.