The charge transfer complex, (BEDT-TTF)(TCNQ), is a hybrid system whic
h consists of one-dimensional (1D) columns and two-dimensional (2D) BE
DT-TTF layers and is known to be a paramagnetic insulator below room t
emperature. In order to examine the electronic structures of 1D and 2D
layers separately, we prepared the complex between TCNQ and C-13, deu
terium-substitured BEDT-TTF. We report the site-selective NMR study on
this sample and discuss the electronic structure of the 1D and 2D ele
ctronic subsystems.