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Synthesis, Crystal Structure and Catalytic Properties of a New 2D Nickel(II) Coordination Polymer Based on Flexible Bis(benzimidazole)

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Chinese Journal of Structural Chemistry 2014年第12期33卷 1819-1825页

作者：杨瑞葛明 van hecke Kristof 崔广华 College of Chemical Engineering Hebei United University Department of Inorganic and Physical Chemistry Ghent UniversityKrijgslaan 281 S3 B-9000 Ghent Belgium

A new Ni(II) coordination polymer [Ni(L)2(SCN)2]n(L = 1,4-bis(benzimidazol-1-yl)butane) was synthesized hydrothermally and characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. The title compound crystallizes in the monoclinic system, space group C2/c with a = 9.4760(3), b = 24.0408(8), c = 16.5871(5) A, β = 99.832(3)°, V = 3723.2(2) A3, Z = 4, Dc = 1.348 g/cm3, F(000) = 1576, the final R = 0.0486 and w R = 0.0936 for 2938 observed reflections with I > 2σ(I) for the complex. Structural analysis shows that the coordination polymer possesses a 2D(4,4) layer structure which is composed of Ni(II) centers bridged by L ligand with two kinds of conformations and further assembled into a 3D supramolecular network via π-π stacking interactions. In addition, the fluorescence and catalytic properties, for the degradation of Congo red, of the complex were investigated.

关键词： bis(benzimidazole) catalytic property crystal structure Ni(II) complex

Synthesis, Crystal Structure and Catalytic Properties of a 2D Cobalt(II) Coordination Polymer Based on Mixed Ligands

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Chinese Journal of Structural Chemistry 2015年第4期34卷 599-605页

作者：张旭葛明 hecke Kristof van 崔广华 College of Chemical Engineering Hebei United University Department of Inorganic and Physical Chemistry Ghent University

A new Co（Ⅱ） metal-organic coordination polymer based on flexible bis（imidazole） and aromatic dicarboxylate co-ligands, namely [Co（bix）（nph）]n （H2nph = 3-nitrophthalic acid, bix = 1,4-bis（imidazole-l-ylmethyl）benzene）, has been hydrothermally synthesized and characterized by elemental analyses, TG, IR spectroscopy and single-crystal X-ray diffraction. It crystallizes in the triclinic space group Piwith a = 9.3767（14）, b = 10.1451（15）, c = 12.1488（17） A, α = 102.6450（10）, β = 108.856（2）, ）, = 98.807（2）°, V= 1035.3（3） A3, Z = 2, C22H17CoN5O6, Mr = 506.34, Dc = 1.624 g/cm^3, p = 0.882 mm^-1 and F（000） = 518. In the complex, the nph^2- ligands connect neighbouring cobalt atoms to form binuclear [Co（nph）]2 subunits, which are linked by pairs of bix ligands to form a 2D honeycomb-like （6,3） network. In addition, the compound is further extended into a 3D supramolecular architecture by π…π stacking interactions. Moreover, the luminescence and catalytic properties of the complex are investigated.

关键词： Co(Ⅱ) complex crystal structure luminescence catalytic property

A multifaceted approach towards understanding the peculiar behavior of(α)-hydroxyiminophosphonates

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Organic Chemistry Frontiers 2022年第1期9卷 173-182页

作者： Thomas Toupy Christopher Kune Kristof van hecke Loïc Quinton Jean-Christophe M.Monbaliu Center for Integrated Technology and Organic Synthesis MolSys Research UnitUniversity of LiègeB-4000 Liège(Sart Tilman)Belgium Mass Spectrometry Laboratory MolSys Research UnitUniversity of LiègeB-4000 Liège(Sart Tilman)Belgium XStruct Department of ChemistryGhent UniversityKrijgslaan 281-S3B-9000 GhentBelgium

The peculiar isomer-selective reduction of(α)-hydroxyiminophosphonates(oxime isomers)into(α)-hydroxyaminophosphonate(hydroxylamine)derivatives is presented.A library of 16(α)-hydroxyiminophosphonates is prepared and studied via a unique multifaceted approach involving the interplay of NMR,XRD,MS,IM-MS and computational chemistry *** combination of NMR,XRD and HPLC enables the seamless separation,identification and quantification of the oxime isomers(E/Z).Tandem MS(MS/MS)enables the determination of the fragmentation patterns for both *** energy breakdown curves highlight the order of apparition of the fragments as well as their related energy of fragmentation,demonstrating that the strength of the C–P bond in the Z isomers is much weaker than in the E *** chemistry demonstrates that favorable protonation site is isomer-dependent with the phosphonate moiety being the favorable protonation site for the E isomers,while protonation occurs preferentially on the amino moiety for Z isomers regardless of the phosphite *** combination of these various methods led an unprecedented level of characterization of oxime isomers,providing a better uderstanding of the isomer-dependent behavior of(α)-hydroxyiminophosphonates.

关键词： isomers phosphonate moiety

Infliximab induces remission in cryptogenic multifocal ulcerous stenosing enteritis:First case

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World Journal of Gastroenterology 2013年第10期19卷 1661-1664页

作者： De Schepper Heiko Macken elisabeth van Marck Veerle Spinhoven Maarten Pelckmans Paul Moreels Tom Department of Gastroenterology and Hepatology Antwerp University HospitalB-2650 Edegem-AntwerpBelgium Department of Pathology Antwerp University HospitalB-2650 Edegem-AntwerpBelgium Department of Radiology Antwerp University HospitalB-2650 Edegem-AntwerpBelgium

We present the case of a 29-year-old patient with a history of abdominal pain and *** on wireless video capsule findings he was previously diagnosed with ileal Crohn's disease at a different institution,although the clinical and radiological picture was not typical and the response to corticosteroids was *** performed a single-balloon enteroscopy showing a short,ulcerous stenosis 50 cm proximal from Bauhin's *** endoscopic and clinical histopathological findings were compatible with cryptogenic multifocal ulcerous stenosing enteritis(CMUSE).High dose corticosteroids were again started,without *** monoclonal tumor necrosis factor-α(TNF-α) antibody infliximab was added to the medical *** induction therapy,both clinical and endoscopic amelioration was *** case studies are needed to confirm the efficacy of TNF-α inhibition in steroid refractory CMUSE.

关键词： Cryptogenic multifocal ulcerous stenosing enteritis Infliximab Stenosis Intestinal ulceration Inflammatory bowel disease

一般人群的神经病理性疼痛：流行病学研究系统回顾

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中国疼痛医学杂志 2015年第5期21卷 327-328页

作者： van hecke O 冯刚机构不详

1.前言神经病理性疼痛是公认的最难治疗的疼痛综合征之一，而且转归往往不尽人意。原因部分是由于神经病变产生的疼痛可能在初级医疗中未被发现，并且药物的使用未达标准。在这一领域的流行病学研究是存在疑问的，例如缺乏一致性，缺乏... 详细信息

1.前言神经病理性疼痛是公认的最难治疗的疼痛综合征之一，而且转归往往不尽人意。原因部分是由于神经病变产生的疼痛可能在初级医疗中未被发现，并且药物的使用未达标准。在这一领域的流行病学研究是存在疑问的，例如缺乏一致性，缺乏能真实反映病例状态和应用于人群研究的有效病例定义；再如变量的多样性研究，病例确诊的方法不同；此外，疼痛不是主诉表现，病例如何纳入或排除等。现有的一般人群患病率的评估可能变得更高，可能有更多的患者正经历着神经病理性疼痛的折磨。

关键词：神经病理性疼痛流行病学一般人群系统回顾疼痛综合征神经病变人群研究病例

Prevention from a community perspective facilitating and constraining factors perceived by nurses in local community health centers in the course of prevention and health promotion

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Open Journal of Preventive Medicine 2012年第4期2卷 461-467页

作者： Bregje D’haeze Wim Peersman Ann van hecke Ignaas Devisch Department of Nursing Sciences Ghent University Ghent Belgium Department of Primary Care Ghent University Ghent Belgium Ghent University and Artevelde University College Ghent Belgium

The purpose of this paper is to explore the stimulating factors and the obstacles experienced by nurses in community health centres in their work with prevention and health promotion. We conducted the qualitative research design consisting of fifteen nurses in five community health centres in Ghent. There was also a focus group and participant observation. All participants experienced stimulating factors as well as obstacles in their work with preventive interventions. The most strongly facilitators were the Electronic Medical File and the multidisciplinary approach. The obstacles mentioned by the nurses were the communication problems and the financial problems. This study may have an important impact on nursing practice and nursing prevention. Further research is needed on nurses working in community health centres and the way they approach their patients in the course of preventive actions.

关键词： Nursing Community Obstacles Stimulating Factors Preventive Health Care

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聚焦疼痛

中国疼痛医学杂志 2017年第7期23卷 487-488,493页

作者： van hecke O 乔梁杜涛机构不详

2016年7月《Nature》推出疼痛专刊,分别从生理病理、诊治现状、发展前景、社会负担等多角度介绍了疼痛,我刊编译部分内容与读者分享。

关键词：生理病理诊治现状发展前景性别差异安慰剂单基因突变雌鼠电刺激感觉皮层镇痛效果

New flavan and unusual chalcone glycosides from Drypetes parvifolia

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Chinese Chemical Letters 2008年第8期19卷 943-946页

作者： Viviane Nadège Nenkep Jovita Chi Shirri Hanh Trinh van-Dufat Falindor Sipepnou Philippe Vérité elisabeth Seguin Francois Tillequin Jean Wandji Department of Organic Chemistry University of Yaounde-1Faculty of ScienceP.O.Box 812YaoundeCameroon Laboratoire de Pharmacognosie de l'Université Paris Descartes UMR/CNRS N 8638Faculté des Sciences Biologiques et Pharmaceutiques4-Avenue de l'Observatoire75006 ParisFrance Laboratoire de Chimie Analytique UFR de Médecine Pharmacie Rouen22-Bid Gambetta76183 Rouen Cedex 1France Laboratoire de Pharmacognosie UFR de Médecine Pharmacie Rouen22-Bld Gambetta76183 Rouen Cedex 1France

Two new compounds 7-hydroxy-5-O-（β-D-glucopyranoside） flavan （1） and （Z）-4＇,6＇-dihydroxy-2＇-O-（β-D-glucopyranoside） chalcone （2）, along with eight known compounds, were isolated from the stem bark of Drypetes parvifolia （Euphorbiaceae）. Their structures were established on the basis of spectroscopic analysis and chemical evidence.

关键词： Drypetes parvifolia Flavonoid glycosides 7-Hydroxy-5-O-(β-D-glucopyranoside) flavan (Z)-4',6'-Dihydroxy-2'-O-(β-D-glucopyr-anoside) chalcone

Retrospective analysis of old-age colitis in the Dutch inflammatory bowel disease population

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World Journal of Gastroenterology 2008年第20期14卷 3183-3187页

作者： Muhammed Hadithi Marcel Cazemier Gerrit A Meijer elisabeth Bloemena Richel J Felt-Bersma Chris J Mulder Stephan GM Meuwissen Amado Salvador Pea Adriaan A van Bodegraven Department of Gastroenterology VUmcUniversity Medical Center Department of Pathology VUmc University MedicalCenter

AIM： To describe the characteristics of Dutch patients with *** bowel disease （IBD） first diagnosed above 60 years of age-a disease also known as old-age colitis （OAC） and to highlight a condition that has a similar appearance to IBD, namely segmen- tal colitis associated with diverticular disease （SCAD）. METHODS： A retrospective longitudinal survey of patient demographic and clinical characteristics, disease characteristics, diagnostic methods, management and course of disease was performed. The median follow-up period was 10 years. RESULTS： Of a total of 1100 IBD patients attending the Department of Gastroenterology, 59 （50） [median age 82 years （range 64-101）; 25 male （42%）] were identified. These patients were diagnosed with ulcerative colitis （n = 37, 61%）, Crohn＇s disease （n = 14, 24%）, and indeterminate colitis （n = 8, 15%）. Remission was induced in 40 （68%） patients within a median interval of 6 mo （range 1-21） and immunosuppressive therapy was well tolerated. Histological evaluation based on many biopsy samples and the course of the disease led to other diagnosis, namely SCAD instead of IBD in five （8%） patients. CONCLUSION： OAC is not an infrequent problem for the gastroenterologist, and should be considered in the evaluation of older patients with clinical features suggestive of IBD. Extra awareness and extensive biopsy sampling are required in order to avoid an erroneous diagnosis purely based on histological mimicry of changes seen in SCAD, when diagnosing IBD in the presence of diverticulosis coli.

关键词： Inflammatory bowel disease Old-age colitis Segmental colitis