A　series　of　octa-substituted　metal　phthalocyanines　[MPc(OC5H11)(8)]　(M　=　Co,　Ni,　Cu,　Zn,　Pc　=　phthalocyaninato,　(OC5H11)s　=　iso-pentoxy)　were　obtained　from　condensation　of　iso-pentoxy　phthalonitrile　in　the　presence　of　DBU　in　n-pentanol.　The　compounds　were　characterized　using　elemental　analysis,　IR,　and　UV/Vis　spectra.　The　crystal　structures　of　all　compounds　except　M　=　Zn　were　determined　by　X-ray　diffraction　methods.　It　was　found　that　the　distortion　of　Pc　skeleton　come　of　not　only　the　intra-molecular　steric　congestion　of　bulky　substituents,　but　also　the　slipped　overlaps　of　the　closest　molecules.　The　relations　of　some　bond　lengths　of　the　Pc＇s　skeleton　to　the　substituents　and　central　metal　atom,　as　well　as　the　spectroscopic　properties　are　discussed.