Nanoscale coordination polymers(NCPs)constructed by metal ions and organic ligands via metal–ligand bonds have attracted great attention for their biomedical application.Herein,a new type of NCP is constructed from Z...Nanoscale coordination polymers(NCPs)constructed by metal ions and organic ligands via metal–ligand bonds have attracted great attention for their biomedical application.Herein,a new type of NCP is constructed from Zn-ions and 4-phenylimidazole(PI),the latter of which is an inhibitor of indoleamine 2,3-dioxygenase(IDO)and acts as an organic bridging ligand via Zn–N coordination bonds.展开更多
A novel coordination polymer[Zn(N 3 ) 2 (bpp)] n [bpp =1,3-bis(4-pyridyl)-propane]was synthesized at room temperature and structurally chara cterized by means of X-ray single cry stal diffraction.The results show t ha...A novel coordination polymer[Zn(N 3 ) 2 (bpp)] n [bpp =1,3-bis(4-pyridyl)-propane]was synthesized at room temperature and structurally chara cterized by means of X-ray single cry stal diffraction.The results show t hat the polymer exhibits a linear chain stru cture;the Zn-Zn distance is 12.235?.Each Zn?ion is coordinated by two nitrogen atoms from bpp ligands and t wo nitrogen atoms from azido(N 3- )groups,the coordination geometry o f Zn?ion is a slightly distorted tetrahed ron,the angles around Zn?ions are from 103.27°to 121.37°.In t he solid-state structure of the polyme r,the linear chains are stacked with parallel mode along a direction.Moreover,between adjacent chains,there areπ-πinteractions between pyridine rings,which are arranged in face-to-face fashion with interplanar distances of av.3.821?.CCDC:189591.展开更多
The vertical and transverse structures of Hongdao clam industry are described and analyzed objectively based on the perspective of industry chain. On the basis of field investigation,the key nodes of Hongdao clam indu...The vertical and transverse structures of Hongdao clam industry are described and analyzed objectively based on the perspective of industry chain. On the basis of field investigation,the key nodes of Hongdao clam industry chain,including nursery,breeding,processing,transportation and sale,are analyzed. It can be concluded that the development of clam industry chain is unbalanced,especially the deep-processing capacity is not strong,and the development of supporting industy lags behind. The horizontal industry chain of clam needs to be further improved. The corresponding suggestions are put forward: strengthening research on new nursery technology in later period,further extending the horizontal industry chain of clam,mining the depth of clam-related leisure industry,and upgrading service level of leisure travel.展开更多
基金supported by the National Research Programs of China(no.2016YFA0201200)the National Natural Science Foundation of China(nos.51525203,51761145041,and 51572180)+2 种基金the China Postdoctoral Science Foundation(no.2020M671143)Collaborative Innovation Center of Suzhou Nano Science and Technology,a Jiangsu Natural Science Fund for Distinguished Young Scholars(no.BK20170063)and a Project Funded by the Priority Academic Program Development(PAPD)of Jiangsu Higher Education Institutions,and a Project Funded for Postgraduate Research&Practice Innovation Program of Jiangsu Province(no.2019 SJKY19_2282).
文摘Nanoscale coordination polymers(NCPs)constructed by metal ions and organic ligands via metal–ligand bonds have attracted great attention for their biomedical application.Herein,a new type of NCP is constructed from Zn-ions and 4-phenylimidazole(PI),the latter of which is an inhibitor of indoleamine 2,3-dioxygenase(IDO)and acts as an organic bridging ligand via Zn–N coordination bonds.
文摘A novel coordination polymer[Zn(N 3 ) 2 (bpp)] n [bpp =1,3-bis(4-pyridyl)-propane]was synthesized at room temperature and structurally chara cterized by means of X-ray single cry stal diffraction.The results show t hat the polymer exhibits a linear chain stru cture;the Zn-Zn distance is 12.235?.Each Zn?ion is coordinated by two nitrogen atoms from bpp ligands and t wo nitrogen atoms from azido(N 3- )groups,the coordination geometry o f Zn?ion is a slightly distorted tetrahed ron,the angles around Zn?ions are from 103.27°to 121.37°.In t he solid-state structure of the polyme r,the linear chains are stacked with parallel mode along a direction.Moreover,between adjacent chains,there areπ-πinteractions between pyridine rings,which are arranged in face-to-face fashion with interplanar distances of av.3.821?.CCDC:189591.
基金Supported by Special Fund for Shellfish System in China Agricultural Industry Research System Construction(CARS-48-09B)General Project of Education of Zhejiang Province(Y201430449)
文摘The vertical and transverse structures of Hongdao clam industry are described and analyzed objectively based on the perspective of industry chain. On the basis of field investigation,the key nodes of Hongdao clam industry chain,including nursery,breeding,processing,transportation and sale,are analyzed. It can be concluded that the development of clam industry chain is unbalanced,especially the deep-processing capacity is not strong,and the development of supporting industy lags behind. The horizontal industry chain of clam needs to be further improved. The corresponding suggestions are put forward: strengthening research on new nursery technology in later period,further extending the horizontal industry chain of clam,mining the depth of clam-related leisure industry,and upgrading service level of leisure travel.
