6,749 research outputs found
Methyl 2-[(ferrocenylcarbonyl)amino]thiophene-3-carboxylate
The title compound, [Fe(Câ
Hâ
)(CââHââNOâS)], was synthesized from ferrocenecarboxylic acid and methyl 2-aminothiophene-3-carboxylate in modest yield. The substituted ring system is essentially planar through the amidothienylcarboxylate moiety, ηâ”-(Câ
Hâ)CONH(CâHâS)COâMe, with the amido unit at an angle of 3.60 (7)° to the five-atom thienyl group, which is oriented at an angle of 3.17 (7)° to the ester moiety. The primary hydrogen bond is an intramolecular N-H...O=Ccarboxylate interaction [N...O 2.727 (2) Ă
], and the main intermolecular hydrogen bond involves a thienyl carboxylate and the carboxylate of a symmetry-related molecule [C...O 3.443 (3) Ă
]
An investigation of children's peer trust across culture: is the composition of peer trust universal?
The components of children's trust in same-gender peers (trust beliefs, ascribed trustworthiness, and dyadic reciprocal trust) were examined in samples of 8- to 11-year-olds from the UK, Italy, and Japan. Trust was assessed by children's ratings of the extent to which same-gender classmates kept promises and kept secrets. Social relations analyses confirmed that children from each country showed significant: (a) actor variance demonstrating reliable individual differences in trust beliefs, (b) partner variance demonstrating reliable individual differences in ascribed trustworthiness, and (c ) relationship variance demonstrating unique relationships between interaction partners. Cultural differences in trust beliefs and ascribed trustworthiness also emerged and these differences were attributed to the tendency for children from cultures that value societal goals to share personal information with the peer group
Redetermination of para-aminopyridine (fampridine, EL-970) at 150 K
The structure of fampridine (EL-970) or 4-aminopyridine, Câ
HâNâ, has been redetermined at 150 K. The room-temperature structure has been reported previously [Chao & Schempp (1977). Acta Cryst. B33, 1557-1564]. Pyramidalization at the amine N atom occurs in fampridine, with the N atom 0.133 (11) Ă
from the plane of the three C/H/H atoms to which it is bonded; the interplanar angle between the pyridyl ring and NH2 group is 21 (2)°. Aggregation in the solid state occurs by N-H...N and N-H...[pi](pyridine) interactions with N...N and N...[pi](centroid) distances of 2.9829 (18) and 3.3954 (15) Ă
, respectively; a C-H...[pi](pyridine) contact completes the intermolecular interactions [C...[pi](centroid) = 3.6360 (16) Ă
]
Intermolecular interactions in N-(ferrocenylmethyl)anthracene-9-carboxamide
The title compound, [Fe(Câ
Hâ
)(CââHââNO)], was synthesized from the coupling reaction of anthracene-9-carboxylic acid and ferrocenylmethylamine. The ferrocenyl (Fc) group and the anthracene ring system both lie approximately orthogonal to the amide moiety. An amide-amide interaction (along the a axis) is the principal interaction [N...O = 2.910 (2) Ă
]. A C-H...Ï(arene) interaction [C...centroid = 3.573 (2) Ă
] and a C-H...O interaction [C...O = 3.275 (3) Ă
] complete the hydrogen bonding; two short (Fc)C...C(anthracene) contacts are also present
Methyl 2-(4-ferrocenylbenzamido)thiophene-3-carboxylate and ethyl 2-(4-ferrocenylbenzamido)-1,3-thiazole-4-acetate, a unique ferrocen
The conformations and hydrogen bonding in the thiophene and thiazole title compounds, [Fe(Câ
Hâ
)(CââHââNOâS)], (I), and [Fe(Câ
Hâ
)(CââHââNâOâS)], (II), are discussed. The sequence (Câ
Hâ)-(CâHâ)-(CONH)-(CâHâS)-(COâMe) of rings and moieties in (I) is close to being planar; all consecutive interplanar angles are less than 10°. An intramolecular N-H...O=Cester hydrogen bond [graph set S(6), N...O = 2.768 (2) Ă
and N-H...O = 134 (2)°] effects the molecular planarity, and aggregation occurs via hydrogen-bonded chains formed from intermolecular Car-H...O=Cester/amide interactions along [010], with C...O distances ranging from 3.401 (3) to 3.577 (2) Ă
. The thiazole system in (II) crystallizes with two molecules in the asymmetric unit; these differ in the conformation along their long molecular axes; for example, the interplanar angle between the phenylene (CâHâ) and thiazole (CâNS) rings is 8.1 (2)° in one molecule and 27.66 (14)° in the other. Intermolecular N-H...O=Cester hydrogen bonds [N...O = 2.972 (4) and 2.971 (3) Ă
], each augmented by a Cphenylene-H...O=Cester interaction [3.184 (5) and 3.395 (4) Ă
], form motifs with graph set RÂčâ(7) and generate chains along [100]. The amide C=O groups do not participate in hydrogen bonding. Compound (II) is the first reported ferrocenyl-containing thiazole structure
Synthesis and characterisation of novel ferrocenyl thienyl and thiazolyl systems
Ferrocenyl derivatives are currently under investigation by our group and several series containing both amidothienyl and amidothiazolyl systems have been synthesised and characterised. The incorporation of thienyl/thiazolyl groups into a ferrocenyl- or ferrocenylphenyl system greatly enhances the number of potential donor atoms for coordination with metal fragments e.g. PtII, PdII with a view to platinum anti-cancer studies and/or interaction with guest molecules through suitable hydrogen bonding interactions.
In nature, thiazole has been found to be vital in certain natural products: examples include the antibiotic bacitracin and the siderophore yersiniabactin. In therapeutic studies the antitumour compound epothilone A and myxothiazole (inhibitor) have been extensively studied
Supply Chains Analysis of Choosing Supplier in Restaurant (Case Study : New Hongkong Restaurant)
A good quality of product does come from a good supplier. That what makes Supplier's quality is paramount for every company. This research is conducted to find the best way for choosing supplier for our company. We believe our research can be successfull due to the fact that there is only few of research here in Indonesia that concern about the importance of choosing the right supplier for the enterprise. We use New hongkong Restaurant as our case study with interview method as our way to collect the data as well as secondary data which will be collected from supplier and company that we choose. The data itself will be analyzed qualitatively in order to determind the right supplier for the enterprise.
Keywords: Supplier, Retail Management, New Hongkong Restaurant, descriptive qualitativ
Intramolecular C-H...O and intermolecular N-H...O and C-H...O interactions in N-ferrocenoylglycine benzyl ester, an effective dihydrogen phosphate anion sensing agent
The title compound, benzyl N-(ferrocenecarbonyl)glycinate,
[Fe(Câ
Hâ
)(Cââ
HââNOâ)], a glycine benzyl ester derivative, is an effective anion sensor for electrochemically sensing the dihydrogen phosphate anion (HâPOâ-).
Intermolecular N--H...O hydrogen bonds form onedimensional
chains with graph set C(4) [N...O 2.811 (3)Ă
,]. A two-dimensional network is formed by linking the chains through Car--H...0=Cester interactions about inversion centres [graph set RÂČâ(14); C...O 3.406 (4)Ă
]. An intramolecular Ccp-H...0=Cester interaction
[C...O 3.540 (3)Ă
,] with graph set S(9) completes
the hydrogen bonding
Large-scale and significant expression from pseudogenes in Sodalis glossinidius â a facultative bacterial endosymbiont
The majority of bacterial genomes have high coding efficiencies, but there are some genomes of intracellular bacteria that have low gene density. The genome of the endosymbiont Sodalis glossinidius contains almost 50â% pseudogenes containing mutations that putatively silence them at the genomic level. We have applied multiple âomicâ strategies, combining Illumina and Pacific Biosciences Single-Molecule Real-Time DNA sequencing and annotation, stranded RNA sequencing and proteome analysis to better understand the transcriptional and translational landscape of Sodalis pseudogenes, and potential mechanisms for their control. Between 53 and 74â% of the Sodalis transcriptome remains active in cell-free culture. The mean sense transcription from coding domain sequences (CDSs) is four times greater than that from pseudogenes. Comparative genomic analysis of six Illumina-sequenced Sodalis isolates from different host Glossina species shows pseudogenes make up ~40â% of the 2729 genes in the core genome, suggesting that they are stable and/or that Sodalis is a recent introduction across the genus Glossina as a facultative symbiont. These data shed further light on the importance of transcriptional and translational control in deciphering hostâmicrobe interactions. The combination of genomics, transcriptomics and proteomics gives a multidimensional perspective for studying prokaryotic genomes with a view to elucidating evolutionary adaptation to novel environmental niches
Intermolecular N-H...N and C-H...O interactions from one-dimensional chains comprising the two independent molecules of N,N'-dicyclohexyl-N-nicotinoylurea
The title_compound, CââHââNâ0â, crystallizes in space
group P1 with two molecules in the asymmetric unit
which differ slightly in conformation. Intermolecular
N--H...N and C--H...O interactions generate a
hydrogen-bonded ring system between the alternating
molecules, graph set RÂČâ(16), with N...N distances
of 3.021 (3) and 3.041 (3)Ă
, and C...O distances of
3.219(3) and 3.296(3)Ă
along the hydrogen-bonded
chains
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