对分课堂在应用型院校基础物理实验中的探索与实践

针对应用创新型人才培养突出能力培养的要求以及应用型高校基础物理实验教与学中的问题进行了分析,提出将对分课堂引入基础物理实验教学,构建了讲授内化讨论操作(PADO)线上线下混合的实验对分课堂模式,并建立量化评价体系全方位评估了PADO模式在课前预习、课堂讨论、实验操作、课后报告环节中的应用效果,结果显示对分课堂能显著提高...     

Mn(Ⅱ) Based Coordination Polymer Involving 1,2,4,5-Benzenetetraboxylic Acid and 4,4-Bis(imidazol-1-ylmethyl)biphenyl: Synthetic,Structure and Magnetic Property

A novel Mn(Ⅱ)coordination polymer(CP),[Mn(BBA)_(0.5)(BIYB)]_n(1),was gained by the 1,2,4,5-benzenetetracarboxylic acid(H_4BBA),4,4-bis(imidazol-1-ylmethyl)biphenyl(BIYB),and Mn(CH_3COO)_2·4H_2O under hydrothermal reaction.CP 1 was characterized and structurally determined by elemental analyses,PXRD,IR spectra,thermal behaviors,and X-ray single-crystal diffraction.The framework structure of 1 shows a novel(2,5,6)-connected 3Dnetwork with a Schlafli symbol of(4~3.6~6.8)~2(4~6.6~9)(6)~2.It crystallizes in triclinic system,space group ■,with a=7.5898(5),b=9.8201(6),c=14.1307(9)?,α=97.5850(10),β=99.6810(10),γ=111.6580(10)o,V=943.01(10)?~3,Z=2,C_(23)H_(15)MnN _4O_4,M_r=466.33,D_c=1.462 g/cm~3,F(000)=476,S=1.082,R=0.0361 and wR=0.1008.The magnetic property of CP 1 was investigated.The weak antiferromagnetic interactions are observed between the Mn(Ⅱ)ions.