In the title compound, [Ni(C9H6N3O3S)2(H2O)2]n, the NiII atom, located on an inversion center, is ligated in an octahedral geometry by two carboxylate O atoms from two 2-{[5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl]sulfanyl}acetate (L) ligands and two O atoms from water molecules in the equatorial plane, and two pyridine N atoms from other two L ligands at the apical sites. Two L ligands bridge pairs of metal atoms in an antiparallel manner, forming centrosymmetric dinuclear quasi-rectangular units which are linked into infinite double-stranded chains parallel to [100]. O—H⋯O hydrogen bonds between the coordinating water molecules and the carboxylate groups of the L ligand as well as interchain S⋯N interactions [2.726 (2)–3.363 (2) Å] lead to the formation of a layer structure parallel to (001).
In the distorted W-shaped molecule of the title compound, C17H12N6O3S2, a twofold axis passes through the carbonyl group. The molecules stack in the crystal through π–π interactions [centroid—centroid distance = 3.883 Å] and weak C—H⋯N hydrogen-bonding interactions, forming a three-dimensional architecture.
Abstract. with continuous advance in reservoir prediction technology, the requirements for inversion accuracy are higher. It requires that seismic data must have features such as high fidelity, high SNR and high resolution. How to ensure the improvement of seismic data resolution on the premise of not reducing fidelity and SNR based on the existing seismic data is a difficult problem with which all geophysical engineers need to be confronted. In this paper, taking NEB gas field in Indonesia as an example, seismic data resolution is improved using the spectral inversion technology, the distribution characteristics of structures and faults in NEB oil and gas field are better ascertained, and the transverse connection of reservoirs and the distribution regularity of sand bodies are finely described, thus having great guidance significance to next development of NEB gas field.
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