In the title compound, C8H20N+·CHO3−·3H2O, the bicarbonate anion, which has a small mean deviation from the plane of 0.0014 Å, fully utilises its three O and one H atom to ...form various O—H...O hydrogen bonds with the three water molecules in the asymmetric unit, generating a hydrogen-bonded layer, which extends along (10overline{1}). The tetraethylammonium cations, as the guest species, are accommodated between every two neighboring layers, constructing a sandwich-like structure with an interlayer distance of 7.28 Å.
In the title compound, C(8)H(20)N(+)·CHO(3) (-)·3H(2)O, the bicarbon-ate anion, which has a small mean deviation from the plane of 0.0014 Å, fully utilises its three O and one H atom to form various ...O-H⋯O hydrogen bonds with the three water mol-ecules in the asymmetric unit, generating a hydrogen-bonded layer, which extends along (10Formula: see text). The tetra-ethyl-ammonium cations, as the guest species, are accommodated between every two neighboring layers, constructing a sandwich-like structure with an inter-layer distance of 7.28 Å.
Security of heterogeneous wireless network is the research hotspot now. Aiming at the security problems of access authentication for heterogeneous wireless network, an access authentication scheme ...based on CPK technology is presented. The access authentication model is based on CPK technology to realize identity authentication, temporary authentication identity is introduced to protect user privacy and provide anonymous service. The authentication and key agreement function is enhanced by the improved ECDH algorithm in the proposed access authentication protocol. By security and performance analysis, this scheme has higher security attributes and better performance.
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