Two low-dimensional Cu(I)boron imidazolate frameworks(BIFs),[CuBH(bim)_(3)]_(n)(BIF-40;bim=benzimidazolate)and[CuBH(im)_(3)]_(n)(BIF-6,im=imidazolate),have been synthesized and both of them display unique mechanochrom...Two low-dimensional Cu(I)boron imidazolate frameworks(BIFs),[CuBH(bim)_(3)]_(n)(BIF-40;bim=benzimidazolate)and[CuBH(im)_(3)]_(n)(BIF-6,im=imidazolate),have been synthesized and both of them display unique mechanochromism.In addition,BIF-40 showed reducing activity due to the rich B–H bonds in the structure,and it was employed to load AuPd bimetal nanoparticles through a one-step process for further catalysis.The corresponding mechanism involving a grinding process between chains or layers is discussed in detail.This work not only provides compelling evidence for designing and applying coordination polymers as mechanochromic materials,but also develops an eco-friendly strategy for loading bimetallic NPs into BIFs.展开更多
Two new boron imidazolate frameworks(BIFs),Zn2[HBH(2-mim)3]2(1,2-PEA)2(EG)2(BIF-120,EG=ethylene glycol)and Zn[BH(2-mim)3](1,2-HPEA)(BIF-121),were successfully synthesized by mixing the KBH(2-mim)3 ligand and the semir...Two new boron imidazolate frameworks(BIFs),Zn2[HBH(2-mim)3]2(1,2-PEA)2(EG)2(BIF-120,EG=ethylene glycol)and Zn[BH(2-mim)3](1,2-HPEA)(BIF-121),were successfully synthesized by mixing the KBH(2-mim)3 ligand and the semirigid aromatic dicarboxylate ligand 1,2-benzenediacetic acid(1,2-H2PEA)under solvothermal conditions.In this paper,the two samples were structurally characterized by single-crystal X-ray diffraction and tested by infrared spectroscopy(IR),UV-visible spectroscopy(UV-Vis),thermogravimetric analysis TGA and X-ray powder diffractions.In addition,the solid-state luminescent properties of these crystals were also investigated.展开更多
基金support of this work by the 973 program(2012CB821705)NSFC(21221001,21203196,21425102)CAS(XDA07070200).
文摘Two low-dimensional Cu(I)boron imidazolate frameworks(BIFs),[CuBH(bim)_(3)]_(n)(BIF-40;bim=benzimidazolate)and[CuBH(im)_(3)]_(n)(BIF-6,im=imidazolate),have been synthesized and both of them display unique mechanochromism.In addition,BIF-40 showed reducing activity due to the rich B–H bonds in the structure,and it was employed to load AuPd bimetal nanoparticles through a one-step process for further catalysis.The corresponding mechanism involving a grinding process between chains or layers is discussed in detail.This work not only provides compelling evidence for designing and applying coordination polymers as mechanochromic materials,but also develops an eco-friendly strategy for loading bimetallic NPs into BIFs.
基金We gratefully acknowledge the National Key Research and Development Program of China(No.2018YFA0208600)。
文摘Two new boron imidazolate frameworks(BIFs),Zn2[HBH(2-mim)3]2(1,2-PEA)2(EG)2(BIF-120,EG=ethylene glycol)and Zn[BH(2-mim)3](1,2-HPEA)(BIF-121),were successfully synthesized by mixing the KBH(2-mim)3 ligand and the semirigid aromatic dicarboxylate ligand 1,2-benzenediacetic acid(1,2-H2PEA)under solvothermal conditions.In this paper,the two samples were structurally characterized by single-crystal X-ray diffraction and tested by infrared spectroscopy(IR),UV-visible spectroscopy(UV-Vis),thermogravimetric analysis TGA and X-ray powder diffractions.In addition,the solid-state luminescent properties of these crystals were also investigated.
