Crystal Structures and Magnetic Studies of Naphthalene Derivatives Containing Nitronyl Nitroxides  

作　　者：张德清 朱洪庆 丁亮 徐伟 刘伟 朱道本 

机构地区：[1]Organic Solids Laboratory, Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China

出　　处：《Chinese Journal of Chemistry》2003年第5期485-490,共6页中国化学（英文版）

基　　金：ProjectsupportedbytheNationalNaturalScienceFoundationofChina (Nos .2 9972 0 44and 90 10 10 2 5 ) ;ChineseAcademyofSciencesandtheMajorStateBasicResearchDevelopmentProgram (No .G2 0 0 0 0 775 0 5 )

摘　　要：Crystal structures of new nitronyl nitroxide derivatives 1, 2 and 3 were determined with X-ray diffraction analysis: 1, monoclinic, C-2/c, a = 1.204 (5) nm; b = 0.9730 (5) nm, c = 2.7049 (10) nm, beta = 98.189 (15)degrees, V = 3.2315 (24) nm(3), Z = 8; 2, orthorhombic, Pbca, a = 0.61262(2) nm, b = 1.11426(6) nm, c = 2.30543(13) nm, V = 1.57373(13) nm(3), Z = 4; 3, monoclinic, P2(1)/n, a = 0.64253(4) nm, b = 2.55003(17) nm, c = 1.15497(6) nm, beta = 95.000(3)degrees, V = 1.8852(2) nm(3), Z = 4. Their magnetic properties were measured with SQUID and analyzed based on their crystal structures with simple singlet-triplet, modified one dimensional antiferromagnetic chain and modified singlet-triplet models respectively: 1, J/k(b) = -2.5 K; 2, J/k(b) = 7.8 K, theta = 2.8 K; 3, J/k(b) = -0.96 K, theta = 0.21 K.Crystal structures of new nitronyl nitroxide derivatives 1, 2 and 3 were determined with X-ray diffraction analysis: 1, monoclinic, C-2/c, a = 1.204 (5) nm; b = 0.9730 (5) nm, c = 2.7049 (10) nm, beta = 98.189 (15)degrees, V = 3.2315 (24) nm(3), Z = 8; 2, orthorhombic, Pbca, a = 0.61262(2) nm, b = 1.11426(6) nm, c = 2.30543(13) nm, V = 1.57373(13) nm(3), Z = 4; 3, monoclinic, P2(1)/n, a = 0.64253(4) nm, b = 2.55003(17) nm, c = 1.15497(6) nm, beta = 95.000(3)degrees, V = 1.8852(2) nm(3), Z = 4. Their magnetic properties were measured with SQUID and analyzed based on their crystal structures with simple singlet-triplet, modified one dimensional antiferromagnetic chain and modified singlet-triplet models respectively: 1, J/k(b) = -2.5 K; 2, J/k(b) = 7.8 K, theta = 2.8 K; 3, J/k(b) = -0.96 K, theta = 0.21 K.

关 键 词：nitronyl nitroxide NAPHTHALENE magneto-structural correlation 

分 类 号：O76[理学—晶体学]