This study focuses on the correlation between sociology and complexity and it operates a reflection on the deep epistemological and ontological meaning of complexity, revealing how complexity goes beyond the analysis ...This study focuses on the correlation between sociology and complexity and it operates a reflection on the deep epistemological and ontological meaning of complexity, revealing how complexity goes beyond the analysis of the global society and is linked to sociology itself and to the issue of its scientific trait. The study shows how complexity, rediscovered following the globalization processes, reconnects sociology with its own origins and concerns the issue of the relation of sociological science with its own object, that is to say, society and social order. In a more radical manner, the challenge of complexity is intertwined with the road of revisiting modern science and epistemological identifying among ＂order＂, ＂intelligibility＂, and ＂science＂. In such a vision, complexity, not only reconnects sociology to its obiect, but highlights how those traits considered as non-scientific residue of human and social sciences belong to the fundamental issue of scientific knowledge. The challenge of complexity is outlined, as questioning the idea according to which the ＂modern＂ science depletes the ＂scientific vision of the world＂.展开更多
A Ni(Ⅱ)complex harnessed in a pentagonal bipyramidal environment by a rigid N_(5)-macrocyclic ligand(i.e.1,3,10,12-tetramethyl-1,2,11,12-tetraaza[3](2,6)-pyridino[3](2,9)-1,10-phenanthrolinophane-2,10-diene)is shown ...A Ni(Ⅱ)complex harnessed in a pentagonal bipyramidal environment by a rigid N_(5)-macrocyclic ligand(i.e.1,3,10,12-tetramethyl-1,2,11,12-tetraaza[3](2,6)-pyridino[3](2,9)-1,10-phenanthrolinophane-2,10-diene)is shown to exhibit axial anisotropy with a ZFS D parameter in the order of−10 to−15 cm^(-1),and this anisotropy is not significantly changed by apical ligand substitution.Using the latter complex as a building unit,a ferromagnetic 1-D CN-bridged Ni-Cr coordination polymer with SCM behavior characterized by a barrier of magnetization reversal U_(eff)/k_(B)=54 K(37 cm^(-1))withτ0=2.28×10^(−11)s was obtained.The Cr(Ⅲ)complex involved in the design was chosen to favor parallel organization of the anisotropy axes of the Ni units along the 1-D array,and thus maximize the magnetic anisotropy of the supramolecular system.A related chain compound prepared with diamagnetic[Ni(CN)_(4)]^(2−)units,and a trinuclear CN-bridged[NiCr_(2)]complex enabled assessing respectively the magnetic anisotropy of Ni(Ⅱ)in this coordination sphere and its exchange interaction with Cr(Ⅲ)found to be ferromagnetic and of the order of 10 cm^(-1).The crystal structures and magnetic behaviors of all compounds are reported.展开更多
文摘This study focuses on the correlation between sociology and complexity and it operates a reflection on the deep epistemological and ontological meaning of complexity, revealing how complexity goes beyond the analysis of the global society and is linked to sociology itself and to the issue of its scientific trait. The study shows how complexity, rediscovered following the globalization processes, reconnects sociology with its own origins and concerns the issue of the relation of sociological science with its own object, that is to say, society and social order. In a more radical manner, the challenge of complexity is intertwined with the road of revisiting modern science and epistemological identifying among ＂order＂, ＂intelligibility＂, and ＂science＂. In such a vision, complexity, not only reconnects sociology to its obiect, but highlights how those traits considered as non-scientific residue of human and social sciences belong to the fundamental issue of scientific knowledge. The challenge of complexity is outlined, as questioning the idea according to which the ＂modern＂ science depletes the ＂scientific vision of the world＂.
文摘A Ni(Ⅱ)complex harnessed in a pentagonal bipyramidal environment by a rigid N_(5)-macrocyclic ligand(i.e.1,3,10,12-tetramethyl-1,2,11,12-tetraaza[3](2,6)-pyridino[3](2,9)-1,10-phenanthrolinophane-2,10-diene)is shown to exhibit axial anisotropy with a ZFS D parameter in the order of−10 to−15 cm^(-1),and this anisotropy is not significantly changed by apical ligand substitution.Using the latter complex as a building unit,a ferromagnetic 1-D CN-bridged Ni-Cr coordination polymer with SCM behavior characterized by a barrier of magnetization reversal U_(eff)/k_(B)=54 K(37 cm^(-1))withτ0=2.28×10^(−11)s was obtained.The Cr(Ⅲ)complex involved in the design was chosen to favor parallel organization of the anisotropy axes of the Ni units along the 1-D array,and thus maximize the magnetic anisotropy of the supramolecular system.A related chain compound prepared with diamagnetic[Ni(CN)_(4)]^(2−)units,and a trinuclear CN-bridged[NiCr_(2)]complex enabled assessing respectively the magnetic anisotropy of Ni(Ⅱ)in this coordination sphere and its exchange interaction with Cr(Ⅲ)found to be ferromagnetic and of the order of 10 cm^(-1).The crystal structures and magnetic behaviors of all compounds are reported.
