A new coordination tetra­mer of copper(I) iodide and benzyl­dimethyl­amine: tetra-μ3-iodido-tetra­kis[(benzyl­dimethyl­amine-κN)copper(I)]

The title compound, [Cu4I4(C9H13N)4], has a distorted cubane-like [Cu4I4] core structure. Each CuI atom is tetra­hedrally coordinated by three I atoms and one N atom of an benzyl­dimethyl­amine ligand. Each I atom acts as a μ3-ligand, linking three CuI atoms. The Cu—I bond distances vary between 2.6328 (7) and 2.7121 (6) Å, while the Cu—N bond distances vary between 2.107 (3) and 2.122 (3) Å

Modeling and Simulation of Spatially Correlated Ground Motions at Multiple Onshore and Offshore Sites

A simulation method of spatially correlated seafloor motions is proposed by considering the influences of seawater on the seafloor motions and their spatial variations at different subsea sites. The offshore site transfer functions are theoretically derived using the fundamental hydrodynamics and one-dimensional wave propagation theory. Three-dimensional spatially varying ground motions on the surfaces of multiple onshore and offshore sites are synthesized based on the spectral representation method and the calculated site transfer functions. A pair of onshore and seafloor recordings from the same earthquake event is employed to examine the basic characteristics of simulated onshore and seafloor motions