The crystal structure of the title compound(C19H15F3N2O2,Mr = 360.33) was determined by single-crystal X-ray diffraction.The crystal belongs to triclinic,space group P1,with a = 6.5604(7),b = 13.9614(16),c = 18....The crystal structure of the title compound(C19H15F3N2O2,Mr = 360.33) was determined by single-crystal X-ray diffraction.The crystal belongs to triclinic,space group P1,with a = 6.5604(7),b = 13.9614(16),c = 18.1790(18) ,α = 102.749(7),β = 97.542(6),γ = 94.355(4)°,V = 1600.5(3) 3,Z = 4,Dc = 1.495 g/cm3,λ(MoKα) = 0.71070,F(000) = 744,μ(MoKα) = 0.122 mm-1,R = 0.0434 and wR = 0.1051.A total of 7590 unique reflections were collected,of which 5429 with |F|2 ≥ 2σ|F|2 were observed.The two cyclohexene rings in the molecule adopt boat-boat conformations with the deviations of ring atoms C(9) and C10 from the C(5)/C(6)/C(7)/C(8) plane(Ⅰ) by 1.1204(0.0023) and 1.1132(0.0023) ,respectively,whereas from the C(2)/C(3)/C(5)/C(8) plane(Ⅱ) by 1.1627(0.0022) and 1.1818(0.0021) ,respectively.In the cyclopropane and lactam rings,atoms C(11) and N(1) point towards the double bond of C(9)-C(10) and the dihedral angle between the ring plane(Ⅲ) containing C(1),C(2),C(3) and C(4) and plane(IV) consisting of C(6),C(7) and C(11) is 55.76(0.07)°.The dihedral angles between planes Ⅳ and Ⅰ and Ⅱ and Ⅲare 63.58(0.07)° and 58.10(0.06)°,respectively.The dihedral angle between the benzene ring C(13)~ C(18) and plane Ⅳ is 42.41(0.06)°.展开更多
电子学档的出现迎合了信息时代对学生学习过程记录的迫切需求,但当前的电子学档过多注重学习的外在结果,很少涉及学生的思考历程,难以把学生的内在学习历程与电子学档的外显表现联系起来,也就难以有效培养学生的自主学习能力。DOL(...电子学档的出现迎合了信息时代对学生学习过程记录的迫切需求,但当前的电子学档过多注重学习的外在结果,很少涉及学生的思考历程,难以把学生的内在学习历程与电子学档的外显表现联系起来,也就难以有效培养学生的自主学习能力。DOL(Dimensions of Learning)理论是一种以思考为主轴的教学模式,改变了以往只关注学习结果的局限,更多的关注学习心理。因此,基于DOL进行电子学档的设计,有利于使隐性的学习过程显性地表征于电子学档之中,使学生通过电子档案的学习从形式化走向其内涵。展开更多
文摘The crystal structure of the title compound(C19H15F3N2O2,Mr = 360.33) was determined by single-crystal X-ray diffraction.The crystal belongs to triclinic,space group P1,with a = 6.5604(7),b = 13.9614(16),c = 18.1790(18) ,α = 102.749(7),β = 97.542(6),γ = 94.355(4)°,V = 1600.5(3) 3,Z = 4,Dc = 1.495 g/cm3,λ(MoKα) = 0.71070,F(000) = 744,μ(MoKα) = 0.122 mm-1,R = 0.0434 and wR = 0.1051.A total of 7590 unique reflections were collected,of which 5429 with |F|2 ≥ 2σ|F|2 were observed.The two cyclohexene rings in the molecule adopt boat-boat conformations with the deviations of ring atoms C(9) and C10 from the C(5)/C(6)/C(7)/C(8) plane(Ⅰ) by 1.1204(0.0023) and 1.1132(0.0023) ,respectively,whereas from the C(2)/C(3)/C(5)/C(8) plane(Ⅱ) by 1.1627(0.0022) and 1.1818(0.0021) ,respectively.In the cyclopropane and lactam rings,atoms C(11) and N(1) point towards the double bond of C(9)-C(10) and the dihedral angle between the ring plane(Ⅲ) containing C(1),C(2),C(3) and C(4) and plane(IV) consisting of C(6),C(7) and C(11) is 55.76(0.07)°.The dihedral angles between planes Ⅳ and Ⅰ and Ⅱ and Ⅲare 63.58(0.07)° and 58.10(0.06)°,respectively.The dihedral angle between the benzene ring C(13)~ C(18) and plane Ⅳ is 42.41(0.06)°.
文摘电子学档的出现迎合了信息时代对学生学习过程记录的迫切需求,但当前的电子学档过多注重学习的外在结果,很少涉及学生的思考历程,难以把学生的内在学习历程与电子学档的外显表现联系起来,也就难以有效培养学生的自主学习能力。DOL(Dimensions of Learning)理论是一种以思考为主轴的教学模式,改变了以往只关注学习结果的局限,更多的关注学习心理。因此,基于DOL进行电子学档的设计,有利于使隐性的学习过程显性地表征于电子学档之中,使学生通过电子档案的学习从形式化走向其内涵。