  Recently, new Cr-based superconductors, A$_2$Cr$_3$As$_3$ (A = K, Rb, Cs),
have gained a strong interest because of their one-dimensional crystal
structures and electron correlations. Here we report the crystal structure and
physical properties of two related materials ACr$_3$As$_3$ (A = Rb, Cs) which
are synthesized via a soft-chemical A+ deintercalation in A$_2$Cr$_3$As$_3$.
The new compounds remain one-dimensional (Cr$_3$As$_3$)$_{\infty}$ linear
chains, and the interchain distance can be tuned by the incorporation of the
alkali-metal cations with different sizes. The physical-property measurements
indicate a local-moment behavior at high temperatures, and the moments freeze
into a cluster spin-glass state below 5$\sim$6 K. No superconductivity was
observed in both materials. We also found that, with increasing the interchain
distance, the Cr effective moments increase monotonically, accompanied with the
enhancement of semi-conductivity. Our results shed light on the understanding
of occurrence of superconductivity in A$_2$Cr$_3$As$_3$.
