Cranberry upside-down coffee cake

1/3 cup butter

1 1/4 cups cranberries

1/2 cup chopped pecans

1/2 cup butter, room temperature

3/4 cup white sugar

2 eggs

1 teaspoon vanilla extract

1 cup sour cream

1 1/2 cups all-purpose flour

1 1/2 teaspoons baking powder

1 teaspoon baking soda

1/2 teaspoon ground cinnamon

1/4 teaspoon salt