检索结果-南通市图书馆

Syntheses, Crystal Structures and Fluorescence Properties of Four Coordination Polymers Based on Enantiomeric 2-(4-Carboxyphenyl)-4,5-dihydrothiazole-4-carboxylic Acid Ligands

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Structural Chemistry 2020年第3期39卷 567-578,380页

作者： LIU Lu Malik Abaid Ullah shu mou-hai School of Chemistry and Chemical Engineering Shanghai Jiaotong UniversityShanghai 200240China

A pair of enatiomerically pure ligands,(R-)/(S-)2-(4-carboxyphenyl)-4,5-dihydrothiazole-4-carboxylic acid(H2L^R & H2L^S), have been synthesized by the reactions of 4-cyanobenzoic acid with L-and D-cysteine, respectively. Four coordination polymers have been prepared from the ligands and structurally determined by single-crystal X-ray diffraction analysis. Complexes 1 R and 1 S([NiL(Py)(H2 O)]×H2 O, for 1 R, L =(L^R)^(2-);for 1 S, L =(L^S)^(2-)) exhibit chiral helical one-dimensional chains, and complexes 2 R and 2 S({[ZnL2(H2 O)3]×CH3 CN}n, for 2 R L =(L^R)^(2-), for 2 S L =(LS)^(2-)) are two-dimensional sheets. Luminescent and chir-optical properties have been investigated and compared with the free ligands. The complexes have blue-shift in luminescence spectrum compared with the free ligands.

关键词： coordination polymer crystal structure chiral ligand fluorescence

Structure of Cytochromec and Its Platinum-modified Derivatives by Fourier Transform Infrared Spectroscopy

在线全文

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 1997年第2期13卷 3-11页

作者： JIANG Li-juan SUN Wei-yin FANG Jiang-lin shu mou-hai TANG Wen-xia State Key Laboratory of Coordination Chemistry Coor dination Chemistry InstituteNanjing UniversityNanjing210093 Center for Materials Analysis Nanjing UniversityNanjing210093

The secondary structures of native cytochrome c(cyt c) in both solid and solution states and four platinum modified cyt c derivatives in solution were determined by means of Fourier transform infrared spectroscopy. It was found that the secondary structure of cyt c in solid state is similar to that in the solution. In the cases of platinum modified cyt c derivatives, when the binding sites of platinum complex are on or near the surface of the protein, its secondary structure is similar to that of native cyt c. However, when the platinum complex binds to Met 80 ligand and causes the replacement of the second axial ligand by non native Lys 79 ligand or H 2O supplied by solvent, there is a significant difference between the structures of low or high spin state cyt c derivatives and that of native cyt c. The results suggest that axial ligand Met 80 residue plays an important role in stabilizing the secondary structure of cyt c.

关键词： Cytochrome c Platinum Secondary structure FT IR

MOF-5负载Pd催化剂的制备及其催化性能初探

在线全文

学校读者我要写书评

暂无评论

无机化学学报 2010年第7期26卷 1213-1217页

作者：赵楠邓洪平舒谋海上海交通大学化学化工学院金属基复合材料国家重点实验室上海200240 南京大学配位化学国家重点实验室南京210093

用水合肼还原Pd2＋并将其负载在MOF-5上,制得了新型的Pd/MOF-5催化剂,采用XRD、氮吸附、SEM、TEM等多种手段对其进行了表征,催化剂的Pd纳米粒子尺寸在3~6nm之间。初步研究了该催化剂对催化卤代芳烃与芳基硼酸之间的Suzuki-Miyaura偶联... 详细信息

用水合肼还原Pd2＋并将其负载在MOF-5上,制得了新型的Pd/MOF-5催化剂,采用XRD、氮吸附、SEM、TEM等多种手段对其进行了表征,催化剂的Pd纳米粒子尺寸在3~6nm之间。初步研究了该催化剂对催化卤代芳烃与芳基硼酸之间的Suzuki-Miyaura偶联反应的反应条件和催化性能,该催化体系具有反应条件温和、无需氮气保护和添加配体、产率优良等优点,催化剂循环利用5次仍然保持较高催化活性,平均产率超过90%。

关键词：钯非均相催化金属-有机框架物 Suzuki偶联反应

基于杯[6]芳烃的分子容器的合成及其对有机铵的可逆识别

在线全文

学校读者我要写书评

暂无评论

高等学校化学学报 2007年第10期28卷 1917-1919页

作者：屠春来郑超陈燕舒谋海上海交通大学化学化工学院上海200240

Calix[6]arenes often serve as molecular host in supramolecular chemistry, however, they show a conformation flexibility due to the inversion of the aromatic rings. It is important to control the structure flexibility of calix[6]arenes. In this work, a C3v-symmetrical molecular receptor calix[6]TPA was synthesized and characterized via 1H NMR, 13C NMR, ESI-MS, and X-ray structural analysis. Molecular recognitions of calix[6]TPA for small organic ammoniums were investigated with 1H NMR, and the inclusions of the straight chain ammoniums were reversiblly controlled by the acidity of the solution. The results indicate that the introduction of a tripodal N4-crypto cap is beneficial to rigidify the structure in a cone conformation, the hydrophobic cavity is an efficient receptor for organic guests, and the reversible recognition of straight chain ammoniums can be potentially applied in separation of organic amines.

关键词：杯芳烃分子识别核磁共振谱超分子化学

双(3-对甲苯基-2-硫代咪唑-1-基)-(3-甲基-5-苯基吡唑-1-基)硼氢酸根的镉及钴配合物的合成与结构表征(英文)

在线全文

学校读者我要写书评

暂无评论

无机化学学报 2006年第8期22卷 1507-1510页

作者：舒谋海屠春来崔靖孙杰上海交通大学化学化工学院上海200240 中国科学院上海有机化学研究所上海200032

Two new complexes CdL2 (1) and CoL2 (2) were synthesized by reactions of L {L =hydrobis(3-p-tolyl-2-thioimidazol-1-yl)-(3-phenyl-5-methyl-pyrazol-1-yl)borate} with cadmium(II) and cobalt(II) acetate respectively, and structurally characterized. The title complexes feature distorted trigonal dipyramidal geometries with a S4H donor set defined by the sulphur and hydrogen atoms of two tripodal sulfur-rich ligands. CCDC: 235514, 1; 244021, 2.

关键词：三角架配体镉钴晶体结构

N_4-calix[6]arene及其铜锌配合物的合成与电喷雾质谱表征

在线全文

学校读者我要写书评

暂无评论

无机化学学报 2008年第7期24卷 1159-1163页

作者：艾婷婷李奇崎梁涛屠春来舒谋海上海交通大学化学化工学院上海200240

酶的高选择性和高效催化作用使生命体能在温和条件下进行化学反应。研究发现酶的活性部位具有特定的结构,可以通过体积识别、氢键、配位键等非共价相互作用对底物进行选择性识别。人们试图通过人工合成分子来模拟酶的结构,重现生物酶的... 详细信息

酶的高选择性和高效催化作用使生命体能在温和条件下进行化学反应。研究发现酶的活性部位具有特定的结构,可以通过体积识别、氢键、配位键等非共价相互作用对底物进行选择性识别。人们试图通过人工合成分子来模拟酶的结构,重现生物酶的功能．因而合成新的功能化的分子主体是一项重要的研究任务。

关键词：分子识别杯芳烃配合物电喷雾质谱

在线全文

学校读者我要写书评

暂无评论

新型一维麻花状超分子配合物的合成与结构

高等学校化学学报 2000年第1期21卷 18-20页

作者：孙为银费宝丽舒谋海唐雯霞郁开北南京大学配位化学国家重点实验室配位化学研究所南京210093 中国科学院成都分院分析中心成都610041

A new bidentate ligand: 4,4′-bis（imidazol-1-ylmethyl）-2,2′-biphenyl（L） was designed and synthesized. Its Mn（Ⅱ） complex [（MnL3）（ClO4）2·2H2O]n crystallizes in orthorhombic system, space group Pca21 with a=3.392 1（11） nm, b=1.010 3（2） nm, c=1.791 5（4） nm, V=6.140（3） nm3, Z=4, Dc=1.334 g/cm3, F（000）=2 564, R=0.049 6, wR2=0.075 4, （Δρ）max=0.263×103 e/nm3, （Δρ）min=-0.237×103 e/nm3. In the titled complex, each ligand L adopts a "Z" conformation and binds with two Mn（Ⅱ） ions and each Mn（Ⅱ） ion binds with six L ligands to give a one-dimensional twisted supramolecular complex.

关键词：超分子一维麻花状结构芳基配体锰配合物合成

Anti-SSA/SSB-negative primary Sjögren’s syndrome presenting with hypokalemia:A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Emergency Medicine 2022年第2期13卷 149-151页

作者： hai-yan Tu shu-ling Yue Li-jun mou Department of Nephrology the Second Affiliated Hospital of Zhejiang University School of MedicineHangzhou 310009China Guangzhou KingMed Center for Clinical Laboratory Co.Ltd. Guangzhou 510320China

Dear editor,Here we report a rare case of a patient presented with repeated hypokalemia and metabolic acidosis secondary to primary Sjögren’s syndrome(pSS).Though no significantly raised titers of anti-SSA/SSB antibodies was detected in our case,minor salivary gland biopsy,kidney biopsy and positive Schirmer’s test confirmed the diagnosis of pSS.

关键词： diagnosis SSB SSA

Immune checkpoint inhibitor for hepatocellular carcinoma recurrence after liver transplantation

在线全文

学校读者我要写书评

暂无评论

Hepatobiliary & Pancreatic Diseases International 2020年第1期19卷 91-93页

作者： Li Zhuang hai-Bo mou Lan-Fang Yu Heng-Kai Zhu Zhe Yang Qin Liao shu-Sen Zheng Zhejiang University School of Medicine Hangzhou 310000China Department of Hepatobiliary Pancreatic Surgery Shulan(Hangzhou)HospitalHangzhou 310022China Department of Oncology Shulan(Hangzhou)HospitalHangzhou 310022China Division of Hepatobiliary and Pancreatic Surgery Department of General Surgerythe First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China

To the Editor:Liver cancer is the fifth most common cancer and the second most frequent cause of cancer-related death *** carcinoma(HCC)accounts for 90%of primary liver cancers with the highest incidence in China(more than 50%of all cases worldwide)[1].Liver transplantation(LT)is regarded as an optimal therapy for selected HCC *** Milan criteria are the benchmark for candidate selection that ensure excellent prognosis for patients with HCC[2].The Hangzhou criteria expand 51.5%more of Milan criteria for LT candidates with comparable posttransplant survivals[3].However,LT recipients fulfilling Milan criteria or Hangzhou criteria are at the risk of up to 13%−18%HCC recurrence rate within five years[4].Only 25%−50%of recurrent HCC patients post-LT are eligible for surgical treatment which have consistently presented favored survival benefit than systemic therapy[5].

关键词： globally Milan Hangzhou