Distribution of molluscs and polychaetes in coastal lagoons in Greece

Hydrochemical (salinity, dissolved oxygen) and sedimentological parameters were investigated in the Messologhi lagoonal area of Greece in July 1981 and compared to the distribution of molluscs and polychaetes by means of the Spearman rank correlation. Dissolved oxygen in bottom waters showed the most obvious correlation with the distribution of species. The grouping of sampling stations based upon their faunal affinities displays the zonal organization of lagoonal populations which may be accounted for in terms of extent of isolation from the open sea, as in other Mediterranean lagoonal systems. © 1988

Isolation of a low-coordinate rhodium phosphine complex formed by C−C bond activation of biphenylene

The isolation of a low-coordinate rhodium complex containing the 2,2'-biphenyl ligand, trans-{Rh(2,2'-biphenyl)(P(i)Pr(3)),][BAr(4)(F)], is described. This complex is prepared by C C bond activation of biphenylene by the [Rh(P(i)Pr(3))(2)](+) fragment and proceeds via the (isolated) intermediate pi complex [Rh(eta(6)-biphenylene)(P(i)Pr(3))(2)[BAr(4)(F)]. An intramolecular ring slippage mechanism is suggested for this process, and this is supported by DET calculations