Synthesis and Crystal Structure of (η~5 EtO(O)CC_5H_4)RuCoMo(μ_3-S)(CO)_8

１　ＩＮＴＲＯＤＵＣＴＩＯＮＩｎｔｈｅｄｅｖｅｌｏｐｍｅｎｔｏｆｔｒａｎｓｉｔｉｏｎｍｅｔａｌｃｌｕｓｔｅｒｓ,ａｇｒｅａｔｍａｎｙｔｅｔｒａｈｅｄｒｏｎ－ｔｙｐｅｃｈｉｒａｌｃｌｕｓｔｅｒｓｈａｖｅｂｅｅｎｓｙｎｔｈｅｓｉｚｅｄ．Ｏｎｅｉｍｐｏｒｔａｎｔｒｅａｓｏｎｉｓｔｈａｔｓｕｃｈｃｌｕｓｔｅｒｓｃａｎｂｅｐｏｔｅｎｔｉａｌｌｙｕｓｅｄａｓａｓｙｍｍｅｔｒｉｃｃａｔａｌｙｓｔｓｉｎｔｈｅｐｒｏｃｅｓｓｗｈｉｃｈｉｓｔｒｕｌｙｃｌｕｓｔｅｒ－ｃａｔ－ａｌｙｚｅｄ〔１,２〕．Ｈｏｗｅｖｅｒ,ｔ…     

Crystal Structure of Tris(2,2'-bipyridine)nickel(II) Tetrachlorozincate

1　INTRODUCTIONThe coordination chemistry oftransition metalcomplexeshasbecomeofremark able interestin recentyears.Sotoftetal.reported the structure of Ni( CH3CN) 6·Zn Cl4 〔1〕.Recently,Shyu etal.reported the structure of〔 Ni( bipy) 3〕〔 Fe( CN) 5 ( NO)〕· 3 H2 O〔2〕.Herein we reportthe structure oftitle complex〔 Ni( bipy) 3〕〔 Zn Cl4 〕 which issimilarto theformertwo complexes.Itisvery interesting to synthesizebimetallic compoundsfor both theoreticalstudy and practicalapp…     

Keggin三取代型杂多阴离子183W NMR化学位移的特征模式＊

The reaction of SiW₉O^10-₃₄ and GeW₉O^10-₃₄ with metal cations leads to Keggin trisubstituted polyoxoanions.A review of all known trisubstituted Keggin anions demonstrates characteristic patterns of ¹⁸³W NMR chemical shifts.     

Synthesis and Crystal Structure of α-( N-Protected a mino)β- lactam Derivative of 1 ,5-Benzothiazepine

１　ＩＮＴＲＯＤＵＣＴＩＯＮＲｅｃｅｎｔｌｙ,ａｎｕｍｂｅｒｏｆｄｅｒｉｖａｔｉｖｅｓｏｆｂｅｎｚｏｔｈｉａｚｅｐｉｎｅｈａｖｅｂｅｅｎｐｒｅｐａｒｅｄａｎｄｓｔｕｄｉｅｄｆｏｒｔｈｅｉｒｐｈａｒｍａｃｏｌｏｇｉｃａｌａｃｔｉｖｉｔｉｅｓ〔１５〕．Ｉｎｏｕｒｐｒｅｖｉｏｕｓｗｏｒｋ,ｗｅｈａｖｅｉｎｃｏｒｐｏｒａｔｅｄｔｈｅβｌａｃｔａｍｒｉｎｇｉｎｔｏ１,５ｂｅｎｚｏｔｈｉａｚｅｐｉｎｅｂｙｒｅａｃｔｉｏｎｏｆ１,５ｂｅｎｚｏｔｈｉａｚｅｐｉｎｅｗｉｔｈｓｏｍｅａｃｙｌｃｈｌｏｒｉｄ…     

压力对La0．3Bi0．2Ca0．5MnO3中晶格畸变的影响

利用同步辐射X射线衍射技术,对La0.3Bi0.2Ca0.5MnO3中存在的Jahn-Teller畸变进行了原位的高压研究。实验表明,外加压力能有效地影响到晶格中Mn－O键长和Mo-O-Mn键角的变化。当压力为1．8GPa时,在晶格中存在的两种不同畸变模式之间的相互作用下,导致了位于a-b基面上的Q2畸变模式的消失。     

Pitzer混合参数对HCl-KCl-H2O体系25 ℃时溶解度预测的影响

Pitzer混合参数对HCl-KCl-H2O体系25 ℃时溶解度预测的影响     

Synthesis and Crystal Structure of [La（BTC）（H2O）6]n

1 INTRODUCTION desired topologies owing to their rich coordination modes[8~12] and we have been exploring the chemi- The assembly of metal-organic infinite frame- stry of coordination polymers constructed by tran- works via coordination of metal ions with multifunc- sition metals and benzoic multicarboxylic acids[13~16]. tional organic ligands is a field of increasing inte- In addition, lanthanide ions have high affinity for rest[1~4]. A rational designed and predictable coor- hard donor a…     

Correlation between Chromatograph Capacity Factors and Structural Parameters of Indole Derivatives

1 INTRODUCTION thods with which the retention factor of a series of compounds could be predicted accurately[1, . In 2] The capacity factor of reversed phased high per- addition, indole and its derivatives have been widely formance liquid chromatograph (RP-HPLC) is a used in the synthesis of medical intermediate, co- basis for quantifying chromatograph peaks and se- loring agent and pesticide etc. Dai et al. have repor- parating compounds. And it has been universally ac- ted the relation…     

Isolation and Identification of Capillarin from Artemisia Ordosica Kraschen

1 INTRODUCTION The whole body of herb of Artemisia Ordosica Kraschen (Artemisia genus of Compositae) has been long used to treat rheummarthritis, parotitis, intestinal obstruction as well as to stop bleeding in traditional Chinese medicine[1]. In our systematic studies of active metabolites, we have isolated seve- ral compounds from ethanol extracts of this plant[2], including flavones, flavanones, an isocoumarine, and capillarin. Coumarines commonly occur in na- tural plants as metabo…