A　novel　ternary　borate　oxide,　lead　bismuth　boron　tetraoxide,　PbBiBO4,　has　been　prepared　by　solid-state　reaction　at　temperature　below　800　degrees　C.　The　single-crystal　X-ray　structural　analysis　showed　that　PbBiBO4　crystallizes　in　the　monoclinic　space　group　P2(1)/n　with　a=7.473(1)angstrom,　b=7.517(1)angstrom,　c=7.609(1)angstrom,　beta=91.48(1),　Z=4.　It　represents　a　new　structure　type　in　which　distorted　BiO69-　octahedra　are　connected　to　each　other　in　corner-　and　edge-sharing　manner　to　form　two-dimensional　(2)(infinity)[BiO4](5-)　layers　that　are　bridged　by　B　atoms　of　BO3　triangles　giving　rise　to　a　three-dimensional　(3)(infinity)[BiBO4](2-)　framework,　with　channels　parallel　to　the　[0　1　0]　direction　accommodating　the　pyramidally　coordinated　Ph2+　cations.　(c)　2006　Elsevier　Inc.　All　rights　reserved.