The mononuclear complex [Ag(C6H6NCl)2](ClO() has been prepared and structurally analyzed by single-crystal X-ray diffraction. The complex crystallizes in the monoclinic system, space group C2/c with unit cell parameters: a=15.5314(2), b=8.0247(8), c=15.3701(2)?.β=118.832(2)°, V=1678.2(3)?3, Z=4, Mr=462.46, Dc=1.830Mg/m3, F(000)=912, μ(MoKα) = 1.694cm-1. The final R and wR are 0.0472 and 0.1272 for 1484 observed reflections with I≥3σ(I). The Ag atom is coordinated by two nitrogen atoms of 4-chloromethyl-pyridine in a linear coordination geometry. Each molecule is further linked by the weak interaction between the Cl and Ag atoms to form a one-dimensional chain structure with Ag－Cl distance of 3.240?. The complex crystallizes in the monoclinic system, space group C2 / c with unit cell parameters: a = 15.5314 Β = 118.832 (2) °, V = 1678.2 (3)? 3, Z = 4, Mr = 462.46, Dc = 1.830 Mg / m3 , F (000) = 912, μ (MoKα) = 1.694 cm-1. The final R and wR are 0.0472 and 0.1272 for 1484 observed reflections with I ≥ 3σ (I). The Ag atom is coordinated by two nitrogen atoms of 4 -chloromethyl-pyridine in a linear coordination geometry. Each molecule is further linked by the weak interaction between the Cl and Ag atoms to form a one-dimensional chain structure with Ag-Cl distance of 3.240 ?.