17 research outputs found
9-Benzyl-9H-carbazole
The asymmetric unit of the title compound, C19H15N, contains two crystallographically independent molecules. In both molecules, the planar carbazole moieties [maximum deviations = 0.037 (4) and 0.042 (3) Å] are oriented with respect to the adjacent benzene rings, at dihedral angles of 85.29 (8) and 89.89 (7)°, respectively. In the crystal structure, weak C—H⋯π interactions are observed involving the carbazole rings
Ethyl 4-hydroxy-9-tosyl-9H-carbazole-3-carboxylate
In the title compound, C22H19NO5S, the carbazole skeleton is nearly planar [maximum deviation = 0.043 (1) Å] with the pyrrole ring oriented at dihedral angles of 2.32 (6) and 1.77 (6)° with respect to the adjacent benzene rings. The dihedral angle between the benzene ring of the tosyl group and the carbazole skeleton is 82.25 (5)°. Intramolecular O—H⋯O hydrogen bonding results in the formation of a planar six-membered ring, which is oriented at a dihedral angle of 3.06 (4)° with respect to the adjacent carbazole skeleton. In the crystal structure, weak intermolecular C—H⋯O interactions link the molecules into infinite chains and π–π contacts between the benzene rings and between the pyrrole and benzene rings [centroid–centroid distances = 3.374 (1) and 3.730 (1) Å, respectively] may further stabilize the structure. A weak C—H⋯π interaction is also present
Ethyl 4-oxo-2,3,4,9-tetrahydro-1H-carbazole-3-carboxylate
In the title compound, C15H15NO3, the carbazole skeleton includes an ethoxycarbonyl group at the 3-position. In the indole ring system, the benzene and pyrrole rings are nearly coplanar, forming a dihedral angle of 0.89 (4)°. The cyclohexenone ring has an envelope conformation. In the crystal, intermolecular N—H⋯O and C—H⋯O hydrogen bonds link the molecules into a three dimensional network. A weak C—H⋯π interaction is also observed
Ethyl 1-oxo-1,2,3,4-tetrahydro-9H-carbazole-3-carboxylate
The title compound, C15H15NO3, contains a carbazole skeleton with an ethoxycarbonyl group at the 3 position. In the indole ring system, the benzene and pyrrole rings are nearly coplanar, forming a dihedral angle of 1.95 (8)°. The cyclohexenone ring has an envelope conformation. In the crystal structure, pairs of strong N—H⋯O hydrogen bonds link the molecules into centrosymmetric dimers with R
2
2(10) ring motifs. π–π contacts between parallel pyrrole rings [centroid–centroid distance = 3.776 (2) Å] may further stabilize the structure. A weak C—H⋯π interaction is also observed
11-Butyl-3-methoxy-11H-benzo[a]carbazole
The title compound, C21H21NO, consists of a carbazole skeleton with a methoxybenzene ring fused to the carbazole, and a butyl group attached to the carbazole N atom. The carbazole skeleton is nearly planar [maximum deviation = 0.078 (2) Å], and it is oriented at a dihedral angle of 4.22 (4)° with respect to the adjacent methoxybenzene ring
Medición de subsidencia del terreno causada por sobreexplotación de acuíferos mediante herramientas GEP: A-DInSAR en la nube
[EN] Groundwater is a vitally important resource for humans. One of the main problems derived from the overexploitation of
aquifers is land subsidence, which in turn carries other associated natural risks. Advanced Differential satellite radar
interferometry (A-DInSAR) techniques provide valuable information on the surface displacements of the ground, which
serve to characterize both the deformational behaviour of the aquifer and its properties. RESERVOIR is a research project
belonging to the European PRIMA programme, whose main objective is to design sustainable groundwater management
models through the study of four areas of the Mediterranean subjected to water stress. One of the main tasks of the project
is the integration of the terrain deformation data obtained with satellite remote sensing techniques in the hydrogeological
and geomechanical models of the aquifers. In the present work, a first evaluation of the deformation of the ground in each
study area is carried out using the tools contained in the Geohazards Exploitation Platform (GEP). This is a service financed
by the European Space Agency (ESA) that allows processing directly on its server, without need to store data or
applications locally.[ES] Las aguas subterráneas son un recurso de vital importancia para el ser humano. Una de las principales problemáticas
derivadas de la sobreexplotación de acuíferos es la subsidencia del terreno, que a su vez lleva asociados otros riesgos
naturales. Las técnicas avanzadas de interferometría radar diferencial de satélite (A-DInSAR) aportan información muy
valiosa sobre los desplazamientos superficiales del terreno, que sirven para caracterizar tanto el comportamiento
geomecánico del acuífero como sus propiedades. RESERVOIR es un proyecto de investigación perteneciente al programa
europeo PRIMA, cuyo principal objetivo es diseñar modelos sostenibles de gestión de aguas subterráneas mediante el
estudio de cuatro zonas del Mediterráneo sometidas a estrés hídrico. Una de las principales tareas del proyecto es la
integración de los datos de deformación del terreno obtenidos con técnicas de teledetección por satélite en los modelos
hidrogeológicos y geomecánicos de los acuíferos. En el presente trabajo se realiza una primera evaluación de la
deformación del terreno en cada zona de estudio utilizando las herramientas contenidas en la Geohazards Exploitation
Platform (GEP). Este servicio financiado por la Agencia Espacial Europea (ESA) permite realizar procesados directamente
en su servidor, sin necesidad de almacenar datos ni aplicaciones en local.This work was supported by RESERVOIR project, which is part of the PRIMA Programme supported under Horizon 2020 the European Union's Framework Programme for Research and Innovation. Grant Agreement number: [1924] [RESERVOIR] [Call 2019 Section 1 Water RIA]. Copernicus Sentinel-1 IW SAR data were provided and processed in ESA’s Geohazards Exploitation Platform (GEP), in the framework of the GEP Early Adopters Programme.Bru, G.; Ezquerro, P.; Guardiola-Albert, C.; Béjar-Pizarro, M.; Herrera, G.; Tomás, R.; Navarro-Hernández, M.... (2021). Land subsidence analysis caused by aquifer overexploitation using GEP tools: A-DInSAR on the cloud. En Proceedings 3rd Congress in Geomatics Engineering. Editorial Universitat Politècnica de València. 127-136. https://doi.org/10.4995/CiGeo2021.2021.12722OCS12713