101
|
Abstract
The title molecule, [Fe(C5H5)(C7H6ClO)], comprises a ferrocene unit with a 2-chloroethanone substituent on one of the cyclopentadienyl (Cp) rings. The two Cp rings are almost coplanar with an angle of 1.28 (1)° between them. In the crystal, C—H...Cl and C—H...O hydrogen bonds together with an edge-to-face C—H...π contact involving the unsubstituted Cp ring stack molecules along thec-axis direction.
Collapse
|
102
|
Harrison WTA, Simpson J, Stoeckli-Evans H, Tiekink ERT, Van Meervelt L, Weil M. The birth of IUCrData. IUCRDATA 2016. [DOI: 10.1107/s2414314615023172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
103
|
McAdam CJ, Simpson J. 2-Chloro-1-ferrocenylethanol. IUCRDATA 2016. [DOI: 10.1107/s2414314616001024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In the title compound, [Fe(C5H5)(C7H8ClO)], the ferrocene cyclopentadiene rings are slightly staggered and inclined to one another at an angle of 0.79 (13)°. In the crystal, C—H...Cl and C—H...O hydrogen bonds each form inversion dimers and these combine with an edge-to-face C—H...π hydrogen bond to stack the molecules along theb-axis direction.
Collapse
|
104
|
Abdelhamida AA, Mohamed SK, Simpson J. 3,3′-[(Cyclohexane-1,4-diyl)bis(azanediyl)]bis(cyclohex-2-en-1-one). IUCRDATA 2016. [DOI: 10.1107/s2414314615021756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The title compound, C18H26N2O2, crystallizes with two half-molecules in the asymmetric unit, both lying about inversion centres situated at the centers of the cyclohexane rings. In the crystal, the two molecules are linked by a pair of N—H...O hydrogen bonds, forming an inversion dimer with anR22(18) ring motif; the dimers are linked by a second pair of N—H...O hydrogen bonds, enclosing anR22(18) ring motif, forming chains along [1-10] which are linked by bifurcated C—H...(O,O) hydrogen bonds, forming slabs parallel to theabplane.
Collapse
|
105
|
Abdelhamid AA, Mohamed SK, Simpson J. 9-(5-Bromo-2-hydroxyphenyl)-10-(2-hydroxyethyl)-3,4,6,7-tetrahydroacridine-1,8(2 H,5 H,9 H,10 H)-dione. IUCRDATA 2016. [DOI: 10.1107/s2414314615024256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In the title compound, C21H22BrNO4, the tetrahydroacridine-1,8-dione unit has a bromohydroxyphenyl-substituent on the central carbon atom of the dihydropyridine ring and a 2-hydroxyethyl substituent on the nitrogen atom. An intramolecular O—H...O hydrogen bond forms between the hydroxyl substituent on the benzene ring and a carbonyl oxygen from the acridinedione, forming anS(8) ring. The hydroxyl group of the 2-hydroxyethyl residue is disordered over two sites with an occupancy ratio of 0.572 (6):0.428 (6). In the crystal structure O—H...O and C—H...O hydrogen bonds together with Br...O halogen bonds stack the molecules along theb-axis direction.
Collapse
|
106
|
Yousef Ebrahimipour S, Sheikhshoaie I, Simpson J, Ebrahimnejad H, Dusek M, Kharazmi N, Eigner V. Antimicrobial activity of aroylhydrazone-based oxido vanadium(v) complexes: in vitro and in silico studies. NEW J CHEM 2016. [DOI: 10.1039/c5nj02594j] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of oxido vanadium(v) complexes have been synthesized and evaluated from the point of experimental and theoretical antimicrobial activity.
Collapse
|
107
|
Rainey SR, Simpson J, Page S, Crowley M, Evans J, Sheridan M, Ireland AJ. The impact of violence reduction initiatives on emergency department attendance. Scott Med J 2016; 60:90-4. [PMID: 25922413 DOI: 10.1177/0036933015576297] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Recent violence reduction initiatives in Glasgow have led to a reduction in recorded levels of violent crime.(1) This study evaluates the impact of these initiatives on assault-related emergency department attendances and admissions. METHODS A retrospective observational study conducted in Glasgow Royal Infirmary's emergency department comparing assault-related emergency department attendances and hospital admissions over two 30-day study periods (April 2010 and April 2012). The primary outcome measure was the change in assault-related emergency department attendances. The secondary outcome measure was the impact on assault-related hospital and critical care admissions. RESULTS In April 2010, there were 6098 emergency department attendances, 301 (4.9%) were due to assault. In April 2012, there were 7236 emergency department attendances, 263 (3.6%) were due to assault, representing a significant reduction in assault-related attendances (p < 0.01). There were significant reductions in level 1 admissions 2010 n = 56 (19.2%), 2012 n = 36 (14.0%) p = 0.04 and critical care admissions, 2010 n = 5 (1.7%), 2012 n = 1 (0.4%) p = 0.04. CONCLUSIONS Violence reduction initiatives in Glasgow have contributed to a reduction in assault-related emergency department attendance at Glasgow Royal Infirmary. The reduction in hospital admissions, in particular critical care admissions, suggests a reduction in morbidity and cost to the National Health Service.
Collapse
|
108
|
Hadadzadeh H, Farrokhpour H, Simpson J, Shakeri J, Daryanavard M, Shokrollahi M. Electrocatalytic reduction of CO2 to CO by a mononuclear ruthenium(ii) complex. NEW J CHEM 2016. [DOI: 10.1039/c5nj03600c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A new mononuclear ruthenium(ii) complex, [Ru(dmbpy)(tptz)(Cl)](PF6) (where dmbpy = 4,4′-dimethyl-2,2′-bipyridine and tptz = 2,4,6-tris(2-pyridyl)-1,3,5-triazine), has been prepared and characterized by spectroscopic methods, cyclic voltammetry (CV), and single-crystal X-ray crystallography.
Collapse
|
109
|
Sultana K, Zaib S, Hassan Khan NU, Khan I, Shahid K, Simpson J, Iqbal J. Exploiting the potential of aryl acetamide derived Zn(ii) complexes in medicinal chemistry: synthesis, structural analysis, assessment of biological profile and molecular docking studies. NEW J CHEM 2016. [DOI: 10.1039/c5nj03531g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study reports an unprecedented series of aryl acetamide derived Zn(ii) complexes as frontline enzyme inhibitors as well as anticancer and anti-parasitic agents.
Collapse
|
110
|
Darabi F, Hadadzadeh H, Simpson J, Shahpiri A. A water-soluble Pd(ii) complex with a terpyridine ligand: experimental and molecular modeling studies of the interaction with DNA and BSA; and in vitro cytotoxicity investigations against five human cancer cell lines. NEW J CHEM 2016. [DOI: 10.1039/c6nj01880g] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
[Pd(4-OHPh-tpy)Cl]Cl was prepared. The complex interacts with DNA via a combination of covalent, intercalation, and hydrogen bonding interactions.
Collapse
|
111
|
McAdam CJ, Moratti SC, Simpson J. Structures and packing of ferrocenylmethyl methacrylate and ferrocene-1,1'-diylbis(methylene) dimethacrylate. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2015; 71:1100-5. [PMID: 26632839 DOI: 10.1107/s2053229615022512] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 11/25/2015] [Indexed: 11/10/2022]
Abstract
Electroactive metallocene polymers are of interest due to the possibility that they offer a muscle-like response, and in gel systems very large volume changes are possible. The ferrocenyl moiety exhibits physical and electrochemical stability of the neutral and oxidized forms and could be a candidate for use as the redox-active group in these materials. The title compounds, [Fe(C5H5)(C10H11O2)], (I), and [Fe(C10H11O2)2], (II), comprise a typical ferrocene core with coplanar and approximately eclipsed cyclopentadienyl (Cp) rings. In (I), there is a single methyl methacrylate substituent, with the other Cp ring unsubstituted. In (II), a methyl methacrylate substituent on each Cp ring completes the structure. In both compounds, there is an s-trans geometry of the vinyl and carbonyl components of the methacrylate group. Inversion dimers formed through C-H...O contacts dominate the crystal packing of both molecules. Weak C-H...π(ring) contacts and, in the case of (I), an unusual C-H...π(alkene) contact further stabilize the structures.
Collapse
|
112
|
McAdam CJ, Hanton LR, Moratti SC, Simpson J. Crystal structures of two bis-(iodo-meth-yl)benzene derivatives: similarities and differences in the crystal packing. Acta Crystallogr E Crystallogr Commun 2015; 71:1505-9. [PMID: 26870415 PMCID: PMC4719824 DOI: 10.1107/s2056989015021295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 11/09/2015] [Indexed: 12/02/2022]
Abstract
The isomeric derivatives 1,2-bis-(iodo-meth-yl)benzene, (I), and 1,3-bis-(iodo-meth-yl)benzene (II), both C8H8I2, were prepared by metathesis from their di-bromo analogues. The ortho-derivative, (I), lies about a crystallographic twofold axis that bis-ects the C-C bond between the two iodo-methyl substituents. The packing in (I) relies solely on C-H⋯I hydrogen bonds supported by weak parallel slipped π-π stacking inter-actions [inter-centroid distance = 4.0569 (11) Å, inter-planar distance = 3.3789 (8) Å and slippage = 2.245 Å]. While C-H⋯I hydrogen bonds are also found in the packing of (II), type II, I⋯I halogen bonds [I⋯I = 3.8662 (2) Å] and C-H⋯π contacts feature prominently in stabilizing the three-dimensional structure.
Collapse
|
113
|
Elberm H, Ravikumar R, Sabin C, Abu Hilal M, Al-Hilli A, Aroori S, Bond-Smith G, Bramhall S, Coldham C, Hammond J, Hutchins R, Imber C, Preziosi G, Saleh A, Silva M, Simpson J, Spoletini G, Stell D, Terrace J, White S, Wigmore S, Fusai G. Outcome after pancreaticoduodenectomy for T3 adenocarcinoma: A multivariable analysis from the UK Vascular Resection for Pancreatic Cancer Study Group. EUROPEAN JOURNAL OF SURGICAL ONCOLOGY 2015; 41:1500-7. [PMID: 26346183 DOI: 10.1016/j.ejso.2015.08.158] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 07/30/2015] [Accepted: 08/04/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Most resectable pancreatic cancers are classified as T3, including those involving the porto-mesenteric vein. Survival and perioperative morbidity for venous resection have been found to be comparable to standard resection. We investigate factors associated with short and long term outcomes in pancreaticoduodenectomy with (PDVR) and without (PD) venous resection exclusively for T3 adenocarcinoma of the head of the pancreas. METHODS This is a UK multicenter retrospective cohort study assessing outcomes in patients undergoing PD and PDVR. All consecutive patients with T3 only adenocarcinoma of the head of the pancreas undergoing surgery between December 1998 and June 2011 were included. Multivariable logistic and proportional hazards regression analyses were performed to determine the association between the surgical groups and in-hospital mortality (IHM) and overall survival (OS). RESULTS 1070 patients were included of whom 840 (78.5%) had PD and 230 (21.5%) had PDVR. Factors independently associated with IHM were a high creatinine (aHR 1.14, p = 0.02), post-operative bleeding (aHR 2.86, p = 0.04) and a re-laparotomy (aHR 8.42, p = 0.0001). For OS, multivariable analyses identified R1 resection margin status (aHR 1.22, p = 0.01), N1 nodal status (aHR 1.92, p = 0.0001), perineural invasion (aHR 1.37, p = 0.002), tumour size >20mm (aHR 0.63, p = 0.0001) and a relaparotomy (aHR 1.84, p = 0.0001) to be independently associated with overall mortality. CONCLUSION This study on T3 adenocarcinoma of the head of the pancreas suggests that IHM is strongly associated with perioperative complications whilst OS is affected by histological parameters. Detailed pre-operative disease evaluation and advances in oncological treatment have the potential to improve OS.
Collapse
|
114
|
Mohamed SK, Simpson J, Marzouk AA, Talybov AH, Abdelhamid AA, Abdullayev YA, Abbasov VM. Multicomponent green synthesis, spectroscopic and structural investigation of multi-substituted imidazoles. Part 1. ACTA ACUST UNITED AC 2015. [DOI: 10.1515/znb-2015-0067] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Abstract
Ten 1,2,4,5-tetra-substituted imidazole derivatives have been synthesized with a 2-hydroxyethy substituent at the 1-nitrogen atom and potentially electron releasing hydroxy-, methoxy-, dimethylamino- or nitro substituents in various positions on the benzene ring located on the 2-carbon atom. The prototypical derivative with an unsubstituted phenyl ring at the 2-position is also reported. The compounds are obtained in excellent yields (average 86%) via a four-component cyclocondensation reaction of benzil, ethanolamine, and the appropriate aromatic carbaldehyde together with ammonium acetate. The reaction uses a novel ionic liquid catalyst, DEAHS (diethyl ammonium hydrogen sulfate), under solvent-free conditions and a green synthetic protocol. The key advantages of this process are high yield, shorter reaction times and ease of work-up. Furthermore, the products can be purified by a non-chromatographic method and the catalyst is re-usable. All of these newly synthesized compounds have been characterized from spectral data; the X-ray structures of three representative molecules are also detailed.
Collapse
|
115
|
Goswami SK, Hanton LR, McAdam CJ, Moratti SC, Simpson J. Structure and packing of aminoxyl and piperidinyl acrylamide monomers. Acta Crystallogr C Struct Chem 2015; 71:860-6. [PMID: 26422212 DOI: 10.1107/s2053229615015946] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 08/26/2015] [Indexed: 11/10/2022] Open
Abstract
The closely related title compounds, 4-acrylamido-2,2,6,6-tetramethylpiperidine-1-oxyl, C12H21N2O2, (I), and N-(2,2,6,6-tetramethylpiperidin-4-yl)acrylamide monohydrate, C12H22N2O·H2O, (II), are important monomers in the preparation of redox-active polymers. They comprise an acrylamide group of the usual s-cis configuration appended to a 2,2,6,6-tetramethyl-substituted piperidine-1-oxyl radical or a piperidinyl chair, respectively. The adjacent amide and piperidinyl H atoms are approximately trans across the C-N bond. The packing in (I) is dominated by N-H...O hydrogen bonds; these are supported by C-H...O contacts to form an R2(1)(6) ring repeat, a motif which has been observed in other acrylamide structures. In (II), hydrogen bonds are again key to the packing arrangements. In this case, the incorporated solvent water molecule acts as an acceptor through its O atom and as a donor through both H atoms, binding three adjacent piperidinylacrylamide molecules into layers. In both structures, weak C-H...O contacts involving the piperidinyl methyl H atoms and a proximal acrylamide carbonyl O atom extend the structure in the third dimension.
Collapse
|
116
|
Galsky M, Pal S, Lin S, Ogale S, Simpson J, Schiff C, Sonpavde G. 2624 The effectiveness of chemotherapy in “real world” patients with metastatic bladder cancer. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31442-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
117
|
Yeung A, Caruana T, Grulich A, de Visser R, Rissel C, Simpson J, Richters J. P04.15 Sexual behaviour, sti testing and diagnosis down under: findings from the second australian study of health and relationships (ashr2). Br J Vener Dis 2015. [DOI: 10.1136/sextrans-2015-052270.269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
118
|
Simpson J, Moxley E, Greenwood SP. Can Honey from Sugar-Fed Bees Be Distinguished from Natural Honey by Its Flavour? ACTA ACUST UNITED AC 2015. [DOI: 10.1080/0005772x.1974.11097484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
119
|
Simpson J. Effects of some Anaesthetics on Honeybees: Nitrous Oxide, Carbon Dioxide, Ammonium Nitrate Smoker Fumes. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/0005772x.1954.11096685] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
120
|
|
121
|
Butler CG, Simpson J. The Introduction of Virgin and Mated Queens, Directly and in a Simple Cage. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/0005772x.1956.11094933] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
122
|
|
123
|
Bamford C, Bonorchis K, Ryan A, Simpson J, Elliott E, Hoffmann R, Naicker P, Ismail N, Mbelle N, Nchabeleng M, Nana T, Sriruttan C, Seetharam S, Wadula J. Antimicrobial Susceptibility Patterns of Selected Bacteraemic Isolates from South African Public Sector Hospitals, 2010. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/10158782.2011.11441461] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
124
|
Tagg T, McAdam CJ, Robinson BH, Simpson J. Crystal structure of 4,4'-diethynylbiphen-yl. Acta Crystallogr E Crystallogr Commun 2015; 71:816-20. [PMID: 26279875 PMCID: PMC4518938 DOI: 10.1107/s2056989015011494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 06/14/2015] [Indexed: 11/24/2022]
Abstract
The title compound, C16H10, crystallizes with four unique mol-ecules, designated 1-4, in the asymmetric unit of the monoclinic unit cell. None of the mol-ecules is planar, with the benzene rings of mol-ecules 1-4 inclined to one another at angles of 42.41 (4), 24.07 (6), 42.59 (4) and 46.88 (4)°, respectively. In the crystal, weak C-H⋯π(ring) interactions, augmented by even weaker C C-H⋯π(alkyne) contacts, generate a three-dimensional network structure with inter-linked columns of mol-ecules formed along the c-axis direction.
Collapse
|
125
|
Greer P, Woodruff H, Simpson J. PD-0138: Real-time EPID based delivery verification during lung stereotactic body radiotherapy: initial experience. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40136-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|