http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Crystal Structure Analysis of 4-Chloro-2{[(2-hydroxy-5-methylphenyl)amino]methyl}5-methylphenol
P. Sharmila, R. Rajesh, R. Venkatesan, Jagadeesan Ganapathy, and S. Aravindhan 조선대학교 기초과학연구원 2016 조선자연과학논문집 Vol.9 No.4
The crystal structure of the saliciline derivatives 4-chloro-2{[(2-hydroxy-5-methylphenyl)amino]methyl}5-methylphenol (C15H15ClNO2) has been determined from single crystal X-ray diffraction data. In the title compound crystallizes in the monoclinic space group P21/c with unit cell dimension a= 11.5241(2) Å, b=8.733(2) Å and c= 13.649(2) Å [α=90°, β= 130.876(2)° and γ= 90°]. the title compound are essentially planar conformation. The compound lies across a crystallographic inversion centre and adopts E configurations with respect to the C-N bonds. The crystal packing of the molecules of compound is stabilized through weak O-H...O inter molecular interactions Keywords: Chromene, Schiff Base Ligand, Single Crystal Structure, X-ray Diffraction
Crystal Structure Analysis of 4-Chloro-2{[(2-hydroxy-5-methylphenyl)amino]methyl}5-methylphenol
Sharmila, P.,Rajesh, R.,Venkatesan, R.,Ganapathy, Jagadeesan,Aravindhan, S. The Basic Science Institute Chosun University 2016 조선자연과학논문집 Vol.9 No.4
The crystal structure of the saliciline derivatives 4-chloro-2{[(2-hydroxy-5-methylphenyl)amino]methyl}5-methylphenol ($C_{15}H_{15}ClNO_2$) has been determined from single crystal X-ray diffraction data. In the title compound crystallizes in the monoclinic space group P21/c with unit cell dimension $a=11.5241(2){\AA}$, $b=8.733(2){\AA}$ and $c=13.649(2){\AA}$ [${\alpha}=90^{\circ}$, ${\beta}=130.876(2)^{\circ}$ and ${\gamma}=90^{\circ}$]. the title compound are essentially planar conformation. The compound lies across a crystallographic inversion centre and adopts E configurations with respect to the C-N bonds. The crystal packing of the molecules of compound is stabilized through weak O-H...O inter molecular interactions.
Sharmila P Bhanu,Suneetha Pentyala,Devi K Sankar 대한해부학회 2020 Anatomy & Cell Biology Vol.53 No.3
The posterior communicating arteries (PCoA) are important component of collateral circulation between the anterior and posterior part of circle of Willis (CW). The hypoplasia or aplasia of PCoA will reflect on prognosis of the neurological diseases. Precise studies of the incidence of hypoplastic PCoA in Andhra Pradesh population of India are hitherto unreported, since the present study was undertaken. Two hundred and thirty one magnetic resonance angiography (MRA) images were analyzed to identify the hypoplasia of PCoA and presence of fetal type of posterior cerebral artery (f-PCA) in patients with different neurological symptoms. All the patients underwent 3.0T MRI exposure. The results were statistically analysed. A total of 63 (27.3%) PCoA hypoplasia and 13 cases with f-PCA (5.6%) cases were identified. The hypoplastic PCoA was noted more in males than females (P<0.05) and right side hypoplasia was common than the left (P<0.04); bilateral hypoplasia of PCoA was seen in 37 cases out of 63 and is significant. The hypoplastic cases of the present study also were associated with variations of anterior cerebral arteries and one case was having vertebral artery hypoplasia. Incidence of PCoA as unilateral or bilateral with other associated anomalies of CW is more prone to develop stroke, migraine and cognitive dysfunction. Knowledge of these variations in the PCoA plays a pivotal role in diagnoses of neurological disorders and in neurovascular surgeries and angiographic point of view.
P. Malathy, P. Sharmila, J. Srinivasan, Bakthadoss Manickam, S. Aravindhan 조선대학교 기초과학연구원 2016 조선자연과학논문집 Vol.9 No.2
The crystal structure of the potential active Methyl 8-bromo-3-phenyl-5a,9a-dihydro-3H- chromen [4,3-c][1,2] isoxazole- 3a(4H)- carboxylate (C18H15BrNO4) has been determined from single crystal X-ray diffraction technique. The title compound crystallizes in the triclinic space group Pī with unit cell dimension a=8.3129 (3) Å, b=9.5847 (4) Å and c= 11.1463(4) Å [α= 98.457(3)°, β= 102.806(2)° and γ= 105.033(5)°]. Single crystals suitable for X-ray diffraction were obtained by slow evaporation method, the isoxazole and six membered pyran rings adopts envelope conformation. In the crystal, molecules are linked via pairs of inter molecular C-H…O hydrogen bonds to form dimmers.
Crystal Structure Analysis of N,N′-bis(3-chloro-2-methylsalicylidene)-1,4- butanediamine
P. Sharmila, R. Rajesh, R. Venkatesan2, Jagadeesan Ganapathy, and S. Aravindhan 조선대학교 기초과학연구원 2016 조선자연과학논문집 Vol.9 No.4
The crystal structure of the saliciline derivatives N,N′-bis(3-chloro-2-methylsalicylidene)-1,4-butanediamine (C20H22Cl2N2O2) has been determined from single crystal X-ray diffraction data. In the title compound crystallizes in the triclinic space group Pī with unit cell dimension a= 4.6085(3) Å, b=5.9747(3) Å and c= 5.9747(3) Å [α=83.889 (4)°, β= 86.744(5)° and γ= 82.085(5)°]. The title compound is essentially planar conformation. The compound lies across a crystallographic inversion centre and adopts E configurations with respect to the C-N bonds. The crystal packing of the molecules of compound is stabilized through weak O-H...N intra molecular interactions Keywords: Chromene; Schiff Base Ligand; Single Crystal Structure; X-ray Diffraction
Malathy, P.,Sharmila, P.,Srinivasan, J.,Manickam, Bakthadoss,Aravindhan, S. The Basic Science Institute Chosun University 2016 조선자연과학논문집 Vol.9 No.2
The crystal structure of the potential active Methyl 8-bromo-3-phenyl-5a,9a-dihydro-3H-chromen [4,3-c][1,2] isoxazole-3a(4H)-carboxylate ($C_{18}H_{15}BrNO_4$) has been determined from single crystal X-ray diffraction technique. The title compound crystallizes in the triclinic space group Pī with unit cell dimension a=8.3129 (3) ${\AA}$, b=9.5847 (4) ${\AA}$ and c=11.1463(4) ${\AA}$ [${\alpha}=98.457(3)^{\circ}$, ${\beta}=102.806(2)^{\circ}$ and ${\gamma}=105.033(5)^{\circ}$]. Single crystals suitable for X-ray diffraction were obtained by slow evaporation method, the isoxazole and six membered pyran rings adopts envelope conformation. In the crystal, molecules are linked via pairs of inter molecular $C-H{\ldots}O$ hydrogen bonds to form dimmers.
K. Devi Sankar,P. Sharmila Bhanu,K. Ramalingam,Sujatha Kiran,B. A. Ramakrishna 대한해부학회 2013 Anatomy & Cell Biology Vol.46 No.4
Placental morphology and cellular arrangement are altered in maternal diseases such as preeclampsia (PE) in which oxygen delivery from the mother to the fetus is greatly disturbed, ultimately resulting in cellular oxidative stress. The present study was conducted at the Department of Anatomy and included 112 placentas (56 each from mothers with and without PE [controls]) collected at the Department of Obstetrics and Gynecology. A histological study was performed using hematoxylin and eosin staining. The morphology of stem and terminal villi (TV) was studied, and the surface area and diameter of TV and capillaries were measured. The gross placental morphometrical study revealed that the mean placental weight, thickness, diameter, and surface area were significantly lower in placentas with PE than in controls. The histomorphometrical findings of the villous surface area and diameter were lower in placentas with PE, whereas the TV density was higher in placentas with PE than in controls, and the differences were significant (P<0.0001). In these TV, the diameter and density of fetal blood vessels of placentas with PE were significantly lower than those of controls (P<0.05). In conclusion, the both morphological and histological changes in PE placentas are indicative of the pathogenesis of maternal and fetal morbidity and mortality in women with PE. The observed and comparative histomorphometrical changes indicate a decline in all aspects of the PE placenta, except the number of TV.
Suneetha Pentyala,K. Devi Sankar,P. Sharmila Bhanu,N. S. Sampath Kumar 대한해부학회 2019 Anatomy & Cell Biology Vol.52 No.1
Pre-communicating or A1 segment of anterior cerebral artery (A1ACA) hypoplasia can negotiate the anterior cerebral circulation. Not many studies have been examined the association of hypoplastic A1ACA and cerebral ischemic stroke (CIS). In this study the authors’ want to accomplish the relationship between hypoplastic A1ACA and outcomes among the patients with CIS in Andhra Pradesh population of India. Retrospective review of prospectively identified 201 adult patients with CIS from 2015 to 2017 was achieved. Patients underwent 3.0T intracranial magnetic resonance angiography were compared with clinical and radiological aspects between male and female cases of A1ACA hypoplasia with associated variations in the circle of Willis. The obtained data was statistically analysed using SPSS software version 16.0 for Windows and P-value <0.05 was considered as significant. Chi-square test was applied to find out the association between the sex and incidence of hypoplastic A1ACA. Sixty-four of 201 patients with A1ACA hypoplasia with no aplastic cases were recorded. It was found to be more in males than females and common on right than left side. Frequent neurological indications such as headache, dizziness, visual instability, nausea, weakness of extremities and seizure were noted and most cases were associated with CIS. Hypoplastic A1ACA often associated with ischemia of terminal branches of ipsilateral ACA which is compromised by the blood flow via contralateral ACA. In this study, though the CIS is not directly related to hypoplastic A1ACA, any alterations in A1 segment is a considerable risk factor of stroke.