Analytical Sciences: X-ray Structure Analysis Online

The crystal structure of [Pb(μ3-Nic)2]n, (HNic = 4-nicotinic acid) is orthorhombic, space group Pbcn with a = 16.595(1), b = 10.028(1), c = 14.635(1)Å and Z = 2. The crystal structure was solved by direct methods and refined by full-matrix least squares to final values of R1 = 0.0277 and wR2 = 0.0609 with 3553 reflections I >2σ(I). The lead(II) ion in [Pb(μ3-Nic)2]n is eight-coordinate and the direction of the Pb-N and Pb-O bonds shows that the coordination around the lead(II) ion is holodirected.

Gholam Hossein SHAHVERDIZADEH

Shahla MASOUDIAN

Ali Akbar SOUDI

Ali MORSALI

Pascal RETAILLEAU

Analytical Sciences X-ray Structure Analysis Online

Crystal Structure of [Pb(.MU.3-Nic)2]n, HNic = 4-nicotinic acid

[Pb(.MU.3-Nic)2]n，HNic = 4-烟酸的晶体结构

The complete structure of the title compound, C17H16O6, isolated from the roots of Oxytropis falcata Bunge, was confirmed unambiguously by a single-crystal X-ray analysis. The absolute configuration was established by circular dichroism (CD). The bond distances and angles are within the expected ranges. The quinone ring is linked to the chroman ring by C(3) at an equatorial position. The crystal structure is also stabilized by intermolecular hydrogen bonds.

Wen-hao CHEN

Zhao-yan REN

Rui WANG

Yan-ping SHI

Crystal Structure and Absolute Configuration of Pendulone

挂钟酮的晶体结构和绝对构型

In the six-coordinated aluminum complex present in the title compound, [Al(C14H15N2O3S)3]·C2H4Cl2, the Al(III) center adopts a highly distorted octahedral geometry, ligated by the N atoms and O atoms of three 8-hydroxy-5-piperidinylquinolinesulfonamide ligands. This octahedrally coordinated complex, meridional Al(SQ)3, crystallizes in the orthorhombic space group P212121, lattice parameters a = 14.099(2)Å, b = 15.960(2)Å, c = 19.537(3)Å, V = 4396.1(12)Å3, Z = 4.

Jung-An CHENG

Han-Ping David SHIEH

Crystal Structure of Tris(5-piperidinylsulfonamide-8-quinolinolato-N1,O8)aluminum(III)-1,2-dichloroethane

三(5-哌啶磺酰胺-8-喹啉-N1,O8)铝(III)-1,2-二氯乙烷的晶体结构

The title complex is triclinic, P1, a = 7.585(3), b = 7.688(4), c = 12.737(6)Å, α = 83.22(2), β = 73.731(19), γ = 63.38(2)°, V = 637.4(5)°3, and Z = 2 at -150°C; R is 0.0242. The structure shows a one-dimensional polymer extending along [111] with two crystallographically independent inversion centers lying at the middle of the C-C bond of each bridging ethylenediamine (en). The Pb atom is coordinated by two I atoms and four N atoms: the two I atoms occupy a cis-position, the two N atoms of a chelating en lie opposed to them, and the four atoms lie in a plane containing the Pb atom; the other two N atoms of the bridging en ligands lie at both axial positions. Since the I-Pb-I angle is 144.57(1)° wide, the Pb environment geometry might be described as being a distorted pentagonal bipyramid, providing a stereochemically active lone pair of electrons of the Pb atom may occupy one coordination site.

Hiroaki YAMANAKA

Goro HIHARA

Hiroshi MIYAMAE

Crystal Structure of PbI2(ethylenediamine)2, catena-.MU.-Ethylenediamine-ethylenediaminediiodolead(II) at -150.DEG.C

-150°C下PbI2(乙二胺)2, 链状-μ-乙二胺-乙二胺二碘铅(II)的晶体结构

Figure 1 of the original article (Analytical Sciences: X-ray Structure Analysis Online, 24, x251) should be replaced with the following one.

Kasthuri BALASUBRAMANI

Packianathan Thomas MUTHIAH

Errata for Hydrogen-bonding Patterns in Pyrimethaminium Picolinate

《吡哌立松吡啶甲酸盐中氢键模式的勘误》

出版信息	出版商: Japan Society for Analytical Chemistry，出版周期: ，期刊类型: journal，开源期刊: 否
基本数据	创刊年份: 2003，原创研究文献占比: ，自引率:， Gold OA占比:

Analytical Sciences: X-ray Structure Analysis Online

期刊引文格式

有 1 位以上作者的期刊

有 2 位作者的期刊

有 3 位作者的期刊

有 5 位以上作者的期刊

书籍引用格式

学位论文引用格式

网页引用格式

专利引用格式

手工熬夜修改参考文献？研飞自动匹配期刊，一键轻松成稿，支持 Word/WPS

投稿经验分享

Crystal Structure of [Pb(.MU.3-Nic)2]n, HNic = 4-nicotinic acid

Crystal Structure and Absolute Configuration of Pendulone

Crystal Structure of Tris(5-piperidinylsulfonamide-8-quinolinolato-N1,O8)aluminum(III)-1,2-dichloroethane

Crystal Structure of PbI2(ethylenediamine)2, catena-.MU.-Ethylenediamine-ethylenediaminediiodolead(II) at -150.DEG.C

Errata for Hydrogen-bonding Patterns in Pyrimethaminium Picolinate

Crystal Structure of [Pb(.MU.3-Nic)2]n, HNic = 4-nicotinic acid

Crystal Structure and Absolute Configuration of Pendulone

Crystal Structure of Tris(5-piperidinylsulfonamide-8-quinolinolato-N1,O8)aluminum(III)-1,2-dichloroethane

Crystal Structure of PbI2(ethylenediamine)2, catena-.MU.-Ethylenediamine-ethylenediaminediiodolead(II) at -150.DEG.C

Errata for Hydrogen-bonding Patterns in Pyrimethaminium Picolinate